Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dung viet ban snippets" » "nang viet ban snippets", "cong viet ban snippets", "mang viet ban snippets", "dung viet bang snippets", "dung viet van snippets", "dung viec ban 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 ("dung viet ban snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dung viet ban snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dung viet ban snippets"))) or ("locating bug core snippets"))*.