Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java code snippets" » "using data code snippets"
"den cong hoa snippets" » "dien cong hoa snippets", "den dong hoa snippets", "len cong hoa snippets", "den dong hoc snippets", "den hang hoa 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 ("den cong hoa snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( den cong hoa snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("den cong hoa snippets"))) or ("locating bugs code snippets"))*.