Perhaps you should try some spelling variations:
"nhung hoi tac snippets" » "nhung thoi tac snippets", "nhung loi tac snippets", "nhung noi tac snippets", "nhung hoi trac snippets", "nhung phoi tac snippets", "nhung hop tac snippets", "nhung hoi tac slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("nhung hoi tac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung hoi tac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung hoi tac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung hoi tac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.