Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"quan van thin snippets" » "luan van thin snippets", "quan va thin snippets", "quan luan thin snippets", "quan van thinh snippets", "quan van thien snippets", "quan van thi 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 ("quan van thin snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( quan van thin snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("quan van thin snippets"))) or ("locating bug core snippets"))*.