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