Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dun tang ho snippets" » "dun nang ho snippets", "duc tang ho snippets", "dung thang ho snippets", "dun tang cho snippets", "dun tung ho snippets", "dun tang ha snippets"
"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: (((("dun tang ho snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dun tang ho snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dun tang ho snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dun tang ho snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.