Perhaps you should try some spelling variations:
"trinh danh dan slippers" » "trinh dinh dan slippers", "trinh dan dan slippers", "trinh anh dan slippers", "trinh danh dau slippers", "trinh canh dan slippers", "trinh dang dan slippers", "trinh danh dan slippery", "trinh danh dan 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 danh dan slippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh danh dan slippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh danh dan slippers"))) or ("locating bug code snippets"))*.