Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"using dat anh slippers" » "using data anh slippers", "using sat anh slippers", "using a anh slippers", "using dat khanh slippers", "using nhat anh slippers", "using dat anh slippery", "using dat anh 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 dat anh slippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( using dat anh slippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("using dat anh slippers"))) or ("locating bug code snippets"))*.