Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cong va cao snippets" » "dong va cao snippets", "cong ha cao snippets", "cong tac cao snippets", "cong va cac snippets", "cong va co snippets", "cong va dao snippets"
"locating bug code snippets" » "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: (((("cong va cao snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong va cao snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong va cao snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong va cao snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.