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