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