Perhaps you should try some spelling variations:
"python using code snippets" » "python using cfd snippets", "python using one snippets", "python using code slippers"
"phan cac hat snippets" » "nhan cach hat snippets", "phan dau hat snippets", "phan lap hat snippets", "phan cac chat snippets", "phan cac hoat snippets", "phan cau hat snippets", "phan cac hat slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("phan cac hat snippets") or ("python using code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan cac hat snippets") OR ("python using code snippets"))) OR ("locating bug code snippets")).
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