Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets"
"locating bug core snippets" » "locating bug code snippets"
"nhan mo o snippets" » "nhan mo code snippets", "nhan my o snippets", "phan mo o snippets", "nhap mon o snippets", "nhan mo ho snippets", "nhan mo co snippets", "nhan mo mo snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("nhan mo o snippets") or ("python missing data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan mo o snippets") OR ("python missing data snippets"))) OR ("locating bug core snippets")).
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