Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran dung manh snippets" » "tran dang manh snippets", "tran hung manh snippets", "tran quang manh snippets", "tran duong manh snippets", "tran dung danh snippets"
"dung java java snippets" » "dung va java 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: (((("tran dung manh snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( tran dung manh snippets ) or ( dung java java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("tran dung manh snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.