Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets"
"locating bug core snippets" » "locating bug code snippets"
"xa dung ha snippets" » "xay dung ha snippets", "xa dong ha snippets", "va dung ha snippets", "xa dung va snippets", "xa dung he snippets", "xa dung khoa snippets"

Try widening your search to All Fields.

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