Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"trong san nhat snippets" » "trong cac nhat snippets", "cong san nhat snippets", "dong san nhat snippets", "trong lan nhat snippets", "trong dang nhat snippets", "trong tran nhat snippets", "trong san nhat slippers"
"locating bug code snippets" » "locating bug code slippers", "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 ("trong san nhat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("trong san nhat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trong san nhat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trong san nhat snippets"))) or ("locating bug code snippets"))*.