Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers"
"phi va viet slippers" » "phi hoa viet slippers", "phi san viet slippers", "phi mai viet slippers", "phai va viet slippers", "phi va viet slippery"
"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: (((("phi va viet slippers") OR ("python using java grippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( phi va viet slippers ) or ( python using java grippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("phi va viet slippers") or ("python using java grippers"))) or ("locating bug code snippets"))*.