Perhaps you should try some spelling variations:
"viet thuan van snippets" » "viet tuan van snippets", "viet thuong van snippets", "viet thanh van snippets", "viet chuan van snippets", "viet luan van snippets", "viet tran van snippets", "viet thuan van 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 thuan van 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 thuan van snippets") OR ("using raw java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( viet thuan van snippets ) or ( using raw java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("viet thuan van snippets") or ("using raw java snippets"))) or ("locating bug code snippets"))*.