Thank you so much for your kind reply but above problem solved by giving encoding UTF-8 while I import from VCorpus.
Now Another problem is also encoding problem.
when I give command " removePunctuation(preserve_intra_word_dashes = TRUE)" it give me following error
Error in UseMethod(“removePunctuation”) :
no applicable method for ‘removePunctuation’ applied to an object of class “name”
if I remove “preserve_intra_word_dashes = TRUE” and Run code it gives me <U+0080> instead of dash sign.
How can I remove or ignore not convert dash in encode?
Thanks in Advance