Perhaps you should try some spelling variations:
"tran doanh duoc snippets" » "toan doanh duoc snippets", "trai doanh duoc snippets", "tran danh duoc snippets", "tran doanh cuoc snippets", "tran doanh quoc snippets", "tran dong duoc snippets", "tran doanh duoc slippers"
"dung java java snippets" » "dung va java snippets", "dung java java 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 ("tran doanh duoc snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("tran doanh duoc snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tran doanh duoc snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tran doanh duoc snippets"))) or ("locating bug code snippets"))*.