Perhaps you should try some spelling variations:
"tran duoc dat snippets" » "tranh duoc dat snippets", "tran duc dat snippets", "tran quoc dat snippets", "tran duoc bat snippets", "tran duoc dai snippets", "tran duoc dan snippets", "tran duoc dat slippers"
"dung va java snippets" » "dung java java snippets", "dung va java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung va java snippets") OR ("tran duoc dat snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dung va java snippets ) or ( tran duoc dat snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung va java snippets") or ("tran duoc dat snippets"))) or ("locating bug code snippets"))*.