Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"viet tran van snippets" » "viet trang van snippets", "viet tuan van snippets", "viet trung van snippets", "viet luan van snippets"
"using a java slippers" » "using _ java slippers", "using a java slippery", "using a java grippers"

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

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