Perhaps you should try some spelling variations:
"trinh toan dat slippers" » "tinh toan dat slippers", "thanh toan dat slippers", "trinh han dat slippers", "trinh toan dam slippers", "trinh toan dai slippers", "trinh tan dat slippers", "trinh toan dat slippery", "trinh toan 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: (((("trinh toan dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( trinh toan dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("trinh toan dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.