Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java java snippets" » "using data java snippets"
"van cuong do snippets" » "van chuong do snippets", "van duong do snippets", "van cong do snippets", "van cuong dao snippets", "van cuong vo snippets", "van luong do snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("van cuong do snippets") or ("using java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van cuong do snippets") OR ("using java java snippets"))) OR ("locating bugs code snippets"))*.
• Removing quotes may allow a broader search: (((( van cuong do snippets ) or ( using java java snippets ))) or ( locating bugs code snippets ))*.