Perhaps you should try some spelling variations:
"using java code slippers" » "using data code slippers"
"trinh cau khu snippets" » "trinh chat khu snippets", "trinh chao khu snippets", "trinh tu khu snippets", "trinh cau khau snippets", "trinh cac khu snippets", "trinh dau khu snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code 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: (((("using java code slippers") OR ("trinh cau khu snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( using java code slippers ) or ( trinh cau khu snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code slippers") or ("trinh cau khu snippets"))) or ("locating bug code snippets"))*.