Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"using raw java snippets" » "using real java snippets", "using a java snippets", "using low java snippets", "using raw java slippers"
"van tuan van snippets" » "van quan van snippets", "van ban van snippets", "anh tuan van snippets", "van luan van snippets", "van tran van snippets", "van tan van snippets", "van tuan van slippers"

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

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