Perhaps you should try some spelling variations:
"tran hung manh snippets" » "tran hong manh snippets", "tran quang manh snippets", "tran hoang manh snippets", "tran nhung manh snippets", "tran hung anh snippets", "tran tung manh snippets", "tran hung manh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tran hung manh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran hung manh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( tran hung manh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets ))*.