Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dan toan luat snippets" » "dan toan luan snippets", "dan toan lua snippets", "dan toan xuat snippets", "van toan luat snippets", "dan than luat snippets", "manh toan luat 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 ("dan toan luat snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dan toan luat snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dan toan luat snippets"))) or ("locating bug core snippets"))*.