Perhaps you should try some spelling variations:
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets", "python using data slippers"
"ly tieu dung snippets" » "ly dieu duong snippets", "ly tin dung snippets", "ly viet dung snippets", "ly hieu dung snippets", "ly dieu dung snippets", "ly sieu dung snippets", "ly tieu dung slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("ly tieu dung snippets") or ("python using data snippets"))) or ("locating bug code snippets"))~.
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