Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap cac vat slippers" » "phap cach vat slippers", "phan cac vat slippers", "pha cac vat slippers", "phap cac van slippers", "phap cac hat slippers", "phap cac chat slippers", "phap cac vat slippery", "phap cac vat 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: (((("phap cac vat slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap cac vat slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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