Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"danh phan trac snippets" » "doanh phan trac snippets", "danh nhan trac snippets", "danh phap trac snippets", "danh phan tap snippets", "danh phan cac snippets", "danh phan tan snippets", "danh phan trac 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: (((("danh phan trac snippets") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh phan trac snippets") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh phan trac snippets ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh phan trac snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.