Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"quan hinh hoc snippets" » "quan binh hoc snippets", "quan tinh hoc snippets", "quan hanh hoc snippets", "quan sinh hoc snippets", "quan tin hoc snippets", "quan benh hoc snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("quan hinh hoc snippets") OR ("using java java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( quan hinh hoc snippets ) or ( using java java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("quan hinh hoc snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.