Perhaps you should try some spelling variations:
"python using java slippery" » "python using data slippery", "python using java slippers"
"p trinh chao grippers" » "p trinh chat grippers", "p trinh han grippers", "p trinh co grippers", "n trinh chao grippers", "lap trinh chao grippers", "co trinh chao grippers", "p trinh chao 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: (((("p trinh chao grippers") or ("python using java slippery"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("p trinh chao grippers") OR ("python using java slippery"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( p trinh chao grippers ) or ( python using java slippery ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("p trinh chao grippers") or ("python using java slippery"))) or ("locating bug code snippets"))*.