Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"using real java snippets" » "using metal java snippets", "using raw java snippets", "using real java slippers"
"van trang va snippets" » "vang trang va snippets", "van thang va snippets", "va trang va snippets", "van tran van snippets", "van hang va snippets", "van trang va 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 trang va snippets") or ("using real java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van trang va snippets") OR ("using real java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( van trang va snippets ) or ( using real java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van trang va snippets") or ("using real java snippets"))) or ("locating bugs code snippets"))*.