Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"con cuong cau snippets" » "con duong cau snippets", "cong luong cau snippets", "doan cuong cau snippets", "con cong cau snippets", "con cuong cac snippets", "con huong cau 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 ("con cuong cau snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( con cuong cau snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("con cuong cau snippets"))) or ("locating bug core snippets"))*.