Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dan viet cong snippets" » "dan viet cuong snippets", "dan viec cong snippets", "dan viet dong snippets", "danh viet cong snippets", "san viet cong snippets", "dao viet cong 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 viet cong snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dan viet cong snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dan viet cong snippets"))) or ("locating bug core snippets"))*.