Perhaps you should try some spelling variations:
"python using data slippery" » "python using java slippery", "python using sat slippery", "python missing data slippery", "python using data slippers"
"don den code snippets" » "don den coi snippets", "don den cong snippets", "don dien code snippets", "dan den code snippets", "don dep code snippets", "don den code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("don den code snippets") or ("python using data slippery"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("don den code snippets") OR ("python using data slippery"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( don den code snippets ) or ( python using data slippery ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("don den code snippets") or ("python using data slippery"))) or ("locating bug code snippets"))*.