Assalaam o alikum. Please guide me any link/website where i may post my any query word and in return i get answer about how many times that particular word or sentence appears in quran.
A concordance of Quran can be found at several places, corpus.quran.com being one example.
Another site that allows you to search the transliterations is https://info.qurangateway.org. You have to register, but it seems even better than the islamicity link since it searches the transliteration (or English) rather than phonetically. You get more exact matches and it highlights the word in the transliteration and Arabic.