Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"nang cuc do snippets" » "nang luc do snippets", "nang cua do snippets", "nang thuc do snippets", "nang cuc du snippets", "nang muc do snippets", "nang cuoc doi 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: (((("nang cuc do snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang cuc do snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang cuc do snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang cuc do snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.