Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong tac cac snippets" » "cong tac code snippets", "cong ty cac snippets", "cong thac cac snippets", "cong tai cac snippets", "cong tap cac snippets"
"dung using java snippets" » "dung ung java snippets", "dung sinh java snippets", "dung uong java snippets", "dung using data 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: (((("cong tac cac snippets") or ("dung using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong tac cac snippets") OR ("dung using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong tac cac snippets ) or ( dung using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong tac cac snippets") or ("dung using java snippets"))) or ("locating bug core snippets"))*.