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"
"phan cau xin snippets" » "phan dau xin snippets", "phan cac xin snippets", "phan tu xin snippets", "phan cau kien snippets", "phan cau vinh snippets", "phan cau hien snippets", "phan cau xin 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: (((("phan cau xin snippets") or ("python using data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan cau xin snippets") OR ("python using data snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("phan cau xin snippets") or ("python using data snippets"))) or ("locating bug code snippets"))*.