Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets"
"locating bug core snippets" » "locating bug code snippets"
"cau de lam snippets" » "cau den lam snippets", "cau do lam snippets", "cuu de lam snippets", "cau da lam snippets", "cau de la snippets", "cau se lam snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("python missing data snippets") or ("cau de lam snippets"))) or ("locating bug core snippets"))~.
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