Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java snippets"
"trinh cac su snippets" » "trinh cau su snippets", "trinh chat su snippets", "trinh chao su snippets", "trinh cach su snippets", "trinh cac sau snippets", "trinh cac du 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: (((("dung java java snippets") OR ("trinh cac su snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh cac su snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh cac su snippets"))) or ("locating bug core snippets"))*.