Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java code snippets" » "using data code snippets"
"duy luan cau snippets" » "du luan cau snippets", "duy lan cau snippets", "duy tuan cau snippets", "duy quan cau snippets", "duy lua cau snippets", "duy luat cau 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: (((("using java code snippets") OR ("duy luan cau snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( duy luan cau snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("duy luan cau snippets"))) or ("locating bugs code snippets"))*.