Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets"
"locating bug core snippets" » "locating bug code snippets"
"hoc do bat snippets" » "hoc doi bat snippets", "hoc co bat snippets", "hoc bo bat snippets", "hoc de bat snippets", "hoc do ba snippets", "hoc do ban snippets"

Try widening your search to All Fields.

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