Perhaps you should try some spelling variations:
"viet nang ma snippets" » "viet trang ma snippets", "viet nam ma snippets", "viet anh ma snippets", "viet tang ma snippets", "viet sang ma snippets", "viet nang cao snippets", "viet nang ma slippers"
"using raw java snippets" » "using real java snippets", "using a java snippets", "using low java snippets", "using raw 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("viet nang ma snippets") or ("using raw java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("viet nang ma snippets") OR ("using raw java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( viet nang ma snippets ) or ( using raw java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("viet nang ma snippets") or ("using raw java snippets"))) or ("locating bug code snippets"))*.