Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets"
"locating bug core snippets" » "locating bug code snippets"
"cuu san mo snippets" » "cuu san code snippets", "cuu van mo snippets", "cua san mo snippets", "cuu ban mo snippets", "cuu san co snippets", "cuu dan mo snippets", "cuu fan mo snippets"

Try widening your search to All Fields.

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