Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dun bang cac snippets" » "dun nang cac snippets", "den bang cac snippets", "duc bang cac snippets", "dun nang cao snippets", "dun hang ca snippets", "dun dung cac 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 bang cac 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 bang cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dun bang cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dun bang cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.