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