Perhaps you should try some spelling variations:
"danh lieu data slippers" » "dan lieu data slippers", "danh hieu data slippers", "danh lien data slippers", "danh lieu dao slippers", "danh bieu dat slippers", "danh lieu da slippers", "danh lieu data slippery", "danh lieu data 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh lieu data slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( danh lieu data slippers ) or ( dung java java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("danh lieu data slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.