Perhaps you should try some spelling variations:
"trinh toan tran slippers" » "tinh toan tran slippers", "thanh toan tran slippers", "trinh han tran slippers", "trinh thoan tran slippers", "trinh tan tran slippers", "trinh hoan tran slippers", "trinh toan tran slippery", "trinh toan tran 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.

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