Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets"
"locating bug core snippets" » "locating bug code snippets"
"dong su ho snippets" » "dong su code snippets", "dang su ho snippets", "dong tu ho snippets", "dong luc ho snippets", "dong su hoa snippets", "dong su hoc snippets", "dong su pho snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dong su ho snippets") or ("python missing data snippets"))) or ("locating bug core snippets"))~.
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