Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"luan thiet de snippets" » "luan thiet ke snippets", "luan thiet yeu snippets", "luan thuyet de snippets", "quan thiet de snippets", "lan thiet de 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: (((("luan thiet de snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan thiet de snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan thiet de snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan thiet de snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.