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