Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"tran cau quan snippets" » "tran chau quan snippets", "toan cau quan snippets", "ran cau quan snippets", "tran cau qua snippets", "tran cao quan snippets", "tran ca quan 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 ("tran cau quan snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( tran cau quan snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("tran cau quan snippets"))) or ("locating bug core snippets"))*.