Perhaps you should try some spelling variations:
"python using java slippery" » "python using data slippery", "python using java slippers"
"p trinh cau grippers" » "p trinh chat grippers", "p trinh chao grippers", "p trinh tu grippers", "n trinh cau grippers", "lap trinh cau grippers", "co trinh cau grippers", "p trinh cau 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 cau 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 cau grippers") OR ("python using java slippery"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( p trinh cau grippers ) or ( python using java slippery ))) or ( locating bug code snippets ))*.