Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets"
"locating bug core snippets" » "locating bug code snippets"
"thi hat do snippets" » "thi hat code snippets", "thai hat do snippets", "thi hai do snippets", "thi ha do snippets", "thi hat doi snippets", "thi hat dao snippets", "thi hat de 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 ("thi hat do snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python missing data snippets") OR ("thi hat do snippets"))) OR ("locating bug core snippets")).
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