Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"qua danh trac snippets" » "qua anh trac snippets", "qua dang tran snippets", "qua danh thuc snippets", "qua dan trac snippets", "luan danh trac snippets", "luat danh trac snippets", "qua danh 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: (((("qua danh 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: (((("qua danh trac snippets") OR ("using java java snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( qua danh trac snippets ) or ( using java java snippets ))) or ( locating bug code snippets ))*.