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