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