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"
"cac cuu tinh snippets" » "cap cuu tinh snippets", "cac cau tinh snippets", "cac chu tinh snippets", "cac cuu trinh snippets", "cac cuu dinh snippets", "cac cuu minh snippets", "cac cuu tinh 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: (((("cac cuu tinh snippets") or ("python using data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac cuu tinh snippets") OR ("python using data snippets"))) OR ("locating bug code snippets")).
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