Perhaps you should try some spelling variations:
"python using java slippery" » "python using data slippery"
"ke dam than slippers" » "ke dam thanh slippers", "ke tam than slippers", "ke dam phan slippers", "ke dan than slippers", "ke dam than grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("ke dam than slippers") or ("python using java slippery"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ke dam than slippers") OR ("python using java slippery"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ke dam than slippers ) or ( python using java slippery ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ke dam than slippers") or ("python using java slippery"))) or ("locating bug code snippets"))*.