Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua phap xac slippers" » "quan phap xac slippers", "cua phap xac slippers", "qua phan xac slippers", "qua phap cac slippers", "qua phap khac slippers", "qua phap cach slippers", "qua phap xac slippery", "qua phap xac grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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