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"
"cong cong coc snippets" » "cong dong coc snippets", "trong cong coc snippets", "dung cong coc snippets", "cong cong cuoc snippets", "cong cong cac snippets", "cong cong co 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 ("cong cong coc snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung ninh java snippets") OR ("cong cong coc snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ninh java snippets ) or ( cong cong coc snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ninh java snippets") or ("cong cong coc snippets"))) or ("locating bug code snippets"))*.