Perhaps you should try some spelling variations:
"tran tung mao snippets" » "tran hung mao snippets", "tran dung mao snippets", "tran quang mao snippets", "tran tuong mao snippets", "tran tung mai snippets", "tran tung mao 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 tung mao 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 tung mao snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( tran tung mao snippets ) or ( dung java java snippets ))) or ( locating bug code snippets ))*.