Perhaps you should try some spelling variations:
"hoa doi cach snippets" » "hoa doi code snippets", "hoa loi cach snippets", "hoa doi canh snippets", "hoa dong cach snippets", "hoa dai cach snippets", "hoc doi cach snippets", "xoa doi cach snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"

Try widening your search to All Fields.

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