Perhaps you should try some spelling variations:
"python using code snippets" » "python using cfd snippets", "python using one snippets", "python using code slippers"
"cac hoi tinh snippets" » "cac vi tinh snippets", "cac bi tinh snippets", "cac ha tinh snippets", "cac thoi tinh snippets", "cac khoi tinh snippets", "cau hoi tinh snippets", "cac hoi tinh 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: (((("python using code snippets") or ("cac hoi tinh snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using code snippets") OR ("cac hoi tinh snippets"))) OR ("locating bug code snippets")).
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