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 du snippets" » "van chuong du snippets", "van duong du snippets", "van cong du snippets", "van cuong do snippets", "van cuong tu snippets", "van luong du snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van cuong du snippets") OR ("using java java snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( van cuong du snippets ) or ( using java java snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("van cuong du snippets") or ("using java java snippets"))) or ("locating bugs code snippets"))*.