Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung tap hoa snippets" » "dung tai hoa snippets", "dung tay hoa snippets", "dung lap hoa snippets", "dung tap hop snippets", "dung tap doan snippets", "dung tap toan 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: (((("dung tap hoa snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung tap hoa snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tap hoa snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tap hoa snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.