Perhaps you should try some spelling variations:
"dung ninh java snippets" » "dung vinh java snippets", "quang ninh java snippets", "dung dich java snippets", "dung trinh java snippets"
"dung doi cong snippets" » "huong doi cong snippets", "dung tai cong snippets", "dung co cong snippets", "dung doi song snippets", "dung noi cong snippets", "dung moi cong 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 ninh java snippets") or ("dung doi cong snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung ninh java snippets") OR ("dung doi cong snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ninh java snippets ) or ( dung doi cong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ninh java snippets") or ("dung doi cong snippets"))) or ("locating bug code snippets"))*.