I have seen many Sunni Sufis as Well as most Shia recite following dua and they vouch for the fact that this dua indeed removes all difficulties for them. Some Ayatullas have declared it to be unauthentic but with a rider that its content are correct and hence can be recited. If you happen to go in a Shia locality you would see this dua on some of their doors too :
NADE ALI-YAN MAZHARAL AJAA’IB, TAJID-HO AVNAL-LAKA FIN NAVAA’IB KOOLLO HAMMIN WA GHAMMIN ILAL-LAHE HAJATI WA ALAI-HE MO’ AV-VALI KOOL-LE-MA RA-MAITO MOTA-QAZI FIL-LAHE YA-DOOL-LAHE VALI-YOOL-LAHE LEE AD’OOKA KOOLLE HAM’MIN WA GHAM’MIN SA-YAN-JALI BE AZMATEKA YA Allah-HO BE NABOO-VATEKA YA MOHAMMAD SAL-LAL-LAHO ALAI-HE WA AALEHI WA’SALLAM BE VILA-YA-TEKA YA ALI-YO, YA-ALI-YO, YA ALI-YO ADRIKNI
(Call Ali, who is Manifestor of wonders, Thou shall surely find him helper in your difficulties, all grief and sorrow shall be removed. I submit my temporal wishes to Thee on whom I trust and always referred *Thee to bestow fulfillment of temporal wishes*. O! Having Thee bestowed support, O! Thee Appointed Wali, All grief and Sorrows will disappear, By Thee by Thy tremulousness O! Lord, By Thee by Thy Apostleship O! Muhammad, - Blessings of Thee on Thy Apostle & descendants, By Thee by Thy granted Power & Authority of Wail, O! Ali, O Ali, O! Ali Help!)
BE HAQQE LOOTFEKAL-KHA’FIAY Allah’HO AKBAR, Allah ‘HO AKBAR Allah’HO AKBAR ANA MIN SHARRE A’DAA’EKA BARIYOON , ALLAHO SAMADI WA ALEY-KA MOTAMADI BE HAQQE IYYAKA NA’BODO WA IYYAKA NASTA’EEN
(O! Ali for Thee granted eternal hidden grants to you, Help! Allah the Almighty is Supreme, Allah the Almighty is supreme, Allah the Almighty is supreme, I am relieved from the enmity of (your) enemies. Thee is Eternal, Absolute; I have trust in Thee, By that truth, Thee do we serve and Thee do we beseech help.)
YA ABAL GHAISE AGHASINI YA ALI YO ADRIKNI YA QAHERAL ADUV-VEY YA WALIYAL WALIYE YA MAZAHRAL AJAA’EBE YA MURTAZA ALIYO YA QAH-HARO TA-QAH-HARTA BIL QAHRO VAL QAHRO FEE QAHRE QAH-REKA YA QAH-HARO YA ZAL BATSISH SHADEEDEY ANTAL KAHERUL JABBRUL MOHLEKUL MUNTA’QEYMUL QVEE-UL LAZI LA YUTAAQOO INTEQ’AMOHU
(O! Helper of the Seekers of help!, O! Ali help!, O! Mighty all winner over enemies, O! Eternal Leaders of the Leaders, O! Manifestor of Wonders, O! The Chosen one, O! Mighty and Powerful, O! Mighty, Valiant, Chivalrous Able oppressor of antagonists Might & Valour is yours, O! Powerful combater, You are mighty and Irresistible, Such a Powerful & Strong avenger that none is capable to resist nor keeps power to revenge)
WA UF-FAW-WE-ZOO AMRI ILLALAHE INAL-LAHA BASEERUM BIL IBADE WA ILLAHOKUM ILLAHU’WN WAHE’DUN LA-ILAHA ILLA HO-WER RAHMANUR RAHEMO HAS-BE-YAL-LAA- HO WA- NAIMAL-WAKEELO NAIMAL MAULA WA NAIMAL NASEERO YA-GHE-YA-SAL MOOS-TAGEESEENA AGHIS’NI YA ARHAMAR-MASAKEENA IRHAMANI YA ALI-YO ADRIKNI, YA ALI-YO ADRIKNIU BE REHMATEKA WA MAN-NEKA WA JOODEKA YA ARHAMAR RAHEMEEN Alla-Homma So’alle Ala Mohammadin Wa Aale Mohammad. (I submit my temporal wishes to Thee, The supreme, No doubt Thy is All Knowing O! People, There is no God except Allah The Supreme, The Merciful, The Beneficent O! Allah, Thy is sufficient, The best Governor, The best Master, The best Helper. O! Helper of seekers of help and bereft, O! The Merciful helper of poor, Come for Help! O! Ali Help! O! Ali Help! , O! Thee by Thy Mercy, by Thy Favour, by Thy Goodness of rewarding, (Help) O! Thee The Merciful and The Most Gracious.
O! Allah Bless Mohammed and his progeny.)
This question has been discussed here. And the common sentiment running in that forum is that even if dua is unauthentic its contents are perfectly valid and go to the extent of accusing the prophet pbuh of reciting this Dua if in trouble? I know this may sound too sectarian question but it is a very practical question which all people who have encounter with such sufi sunnis or Shias. The problem with this is that they disrespect the prophet pbuh by accusing him of seeking help of Ali AS and Ali AS appearing instantly to help! They further vouch that this dua of Nade Ali has helped them many times!