Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"son vung dat slippers" » "son tung dat slippers", "so vung dat slippers", "ngon vung dat slippers", "son dung dat slippers", "son vung va slippers", "son vung dat slippery", "son vung dat grippers"
"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 java java snippets") or ("son vung dat slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("son vung dat slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( son vung dat slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("son vung dat slippers"))) or ("locating bug code snippets"))*.