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