Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"lan van dat slippers" » "luan van dat slippers", "lang van dat slippers", "tan van dat slippers", "lan van dao slippers", "lan van dau slippers", "lan dan dat slippers", "lan van dat slippery", "lan van 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: (((("lan van dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lan van dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan van dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan van dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.