Perhaps you should try some spelling variations:
"dung trung vai snippets" » "dung trong vai snippets", "quang trung vai snippets", "truong trung vai snippets", "dung trung dai snippets", "dung trung va snippets", "dung trung van snippets", "dung trung vai slippers"
"using sat java snippets" » "using data java snippets", "using a java snippets", "using raw java snippets", "using sat va snippets", "using sat 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 trung vai snippets") OR ("using sat java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dung trung vai snippets ) or ( using sat java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung trung vai snippets") or ("using sat java snippets"))) or ("locating bug code snippets"))*.