Perhaps you should try some spelling variations:
"python using java slippery" » "python using data slippery", "python using java slippers"
"ke van phan grippers" » "ke van phong grippers", "ke van thanh grippers", "ke luan phan grippers", "ket van phan grippers", "le van phan grippers", "ke va phan grippers", "ke van phan 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: (((("ke van phan grippers") or ("python using java slippery"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ke van phan grippers") OR ("python using java slippery"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ke van phan grippers ) or ( python using java slippery ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ke van phan grippers") or ("python using java slippery"))) or ("locating bug code snippets"))*.