Perhaps you should try some spelling variations:
"can trinh duoc slippers" » "can trinh doc slippers", "can trinh duc slippers", "can trinh quoc slippers", "can tranh duoc slippers", "dan trinh duoc slippers", "van trinh duoc slippers", "can trinh duoc slippery", "can trinh duoc 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 ("can trinh duoc slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("can trinh duoc slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( can trinh duoc slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("can trinh duoc slippers"))) or ("locating bug code snippets"))*.