Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets", "locatinhg bug core snippets"
"tran thong tin snippets" » "toan thong tin snippets", "tran trong tin snippets", "tran hong tin snippets", "tran thong tinh snippets"
"dung java java snippets" » "dung va java snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tran thong tin snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"tran thong tin snippets\") OR (\"dung java java snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( tran thong tin snippets ) OR ( dung java java snippets ))) OR ( locating bug core snippets ))*.