Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java can snippets" » "using data can snippets"
"dung luat cac snippets" » "dung luan cac snippets", "dung quat cac snippets", "dung cua cac snippets", "dung luat can snippets", "dung luat cau snippets", "dung xuat cac 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 can snippets") OR ("dung luat cac snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( using java can snippets ) or ( dung luat cac snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java can snippets") or ("dung luat cac snippets"))) or ("locating bugs code snippets"))*.