Perhaps you should try some spelling variations:
"vi dinh code slippers" » "vi dinh che slippers", "vi dinh cong slippers", "vi dinh hoe slippers", "vi sinh code slippers", "vi tinh code slippers", "vu dinh code slippers"
"using a java snippets" » "using _ java 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: (((("vi dinh code slippers") OR ("using a java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( vi dinh code slippers ) or ( using a java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi dinh code slippers") or ("using a java snippets"))) or ("locating bug code snippets"))*.