Perhaps you should try some spelling variations:
"python using java slippery" » "python using data slippery"
"tan cua qua slippers" » "than cua qua slippers", "tang cua qua slippers", "toan cua qua slippers", "tan cua quan slippers", "tan cua rua slippers", "tan cuu qua slippers", "tan cua qua grippers"
"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: (((("tan cua qua slippers") or ("python using java slippery"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tan cua qua slippers") OR ("python using java slippery"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan cua qua slippers ) or ( python using java slippery ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan cua qua slippers") or ("python using java slippery"))) or ("locating bug code snippets"))*.