Perhaps you should try some spelling variations:
"using java java slippery" » "using data java slippery"
"vi sinh cong slippers" » "vi minh cong slippers", "vi trinh cong slippers", "vi chinh cong slippers", "vi sinh cong 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: (((("vi sinh cong slippers") OR ("using java java slippery"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( vi sinh cong slippers ) or ( using java java slippery ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi sinh cong slippers") or ("using java java slippery"))) or ("locating bug code snippets"))*.