Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"dung java java slippers" » "dung va java slippers", "dung java java slippery", "dung java java grippers"
"dong danh het snippets" » "dong doanh het snippets", "dong anh het snippets", "cong danh het snippets", "dong danh viet snippets", "dong danh hieu snippets", "dong danh bat 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 slippers") OR ("dong danh het snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( dung java java slippers ) or ( dong danh het snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java slippers") or ("dong danh het snippets"))) or ("locating bugs code snippets"))*.