Perhaps you should try some spelling variations:
"trinh gian dat slippers" » "trinh giang dat slippers", "trinh giao dat slippers", "trinh giai dat slippers", "trinh gian dan slippers", "trinh gian dac slippers", "trinh giang day slippers", "trinh gian dat slippery", "trinh gian dat grippers"
"dung java java snippets" » "dung va java 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: (((("dung java java snippets") OR ("trinh gian dat slippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh gian dat slippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh gian dat slippers"))) or ("locating bug code snippets"))*.