Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"va hang khoa snippets" » "va dung khoa snippets", "van hang khoa snippets", "va nang khoa snippets", "va lang khoa snippets", "va hang khoa 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: (((("using java java snippets") or ("va hang khoa snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java java snippets") OR ("va hang khoa snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( using java java snippets ) or ( va hang khoa snippets ))) or ( locating bug code snippets ))*.