Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung so doc snippets" » "dung co doc snippets", "dung mo doc snippets", "dung cho doc snippets", "dung so do snippets", "dung so dac snippets", "dung so do8 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: (((("dung so doc snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung so doc snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung so doc snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung so doc snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.