Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"using phu tran slippers" » "using ph tran slippers", "song phu tran slippers", "using pre tran slippers", "using phung tran slippers", "using thu trang slippers", "using chu trang slippers", "using phu tran slippery", "using phu tran grippers"
"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: (((("dung java java snippets") OR ("using phu tran slippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( using phu tran slippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("using phu tran slippers"))) or ("locating bug code snippets"))*.