Perhaps you should try some spelling variations:
"dung de toan snippets" » "dung de code snippets", "dung he toan snippets", "dung dat toan snippets", "dung ke toan snippets", "dung de hoan snippets", "dung de ton 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 ("dung de toan snippets"))) or ("locating bug core snippets"))~.
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