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