Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers"
"de vat trong slippers" » "de viet trong slippers", "de dot trong slippers", "de cay trong slippers", "de dat trong slippers", "de van trong slippers", "de bat trong slippers", "de vat trong 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("de vat trong slippers") 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 slippers") OR ("python using java grippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( de vat trong slippers ) or ( python using java grippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("de vat trong slippers") or ("python using java grippers"))) or ("locating bug code snippets"))*.