Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers", "python using java slippers"
"de vat trong slippery" » "de viet trong slippery", "de dot trong slippery", "de cay trong slippery", "de dat trong slippery", "de van trong slippery", "de bat trong slippery", "de vat trong slippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets", "locating bug code slippers"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("de vat trong slippery") or ("python using java grippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("de vat trong slippery") OR ("python using java grippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( de vat trong slippery ) or ( python using java grippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("de vat trong slippery") or ("python using java grippers"))) or ("locating bug code snippets"))*.