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