Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"trong tan lieu slippers" » "trong san lieu slippers", "trong quan lieu slippers", "trong cac lieu slippers", "trong tai lieu slippers", "trong dan lieu slippers", "trong thanh lieu slippers", "trong tan lieu slippery", "trong tan lieu 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 ("trong tan lieu slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("trong tan lieu slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trong tan lieu slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trong tan lieu slippers"))) or ("locating bug code snippets"))*.