Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"locating bug core snippets" » "locating bug code snippets"
"con cua hon snippets" » "cong cua hon snippets", "co cua hon snippets", "dong cua hon snippets", "con cua hoi snippets", "con cua hoc snippets", "con ca hon 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 ("con cua hon snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( con cua hon snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("con cua hon snippets"))) or ("locating bug core snippets"))*.