Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhan hoc co snippets" » "nhan hoc code snippets", "nha hoc co snippets", "nhan hoa co snippets", "than hoc co snippets", "nhan hoc cao 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 ("nhan hoc co snippets"))) or ("locating bug core snippets"))~.
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