Perhaps you should try some spelling variations:
"dan vung code snippets" » "dan bug code snippets", "dan vung co snippets", "dan dung code snippets", "dao vung code snippets", "dang hung code snippets"
"python using sat snippets" » "python using data snippets", "python using a snippets", "python using raw snippets"
"locating bug core snippets" » "locating bug code snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dan vung code snippets") or ("python using sat snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan vung code snippets") OR ("python using sat snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dan vung code snippets ) or ( python using sat snippets ))) or ( locating bug core snippets )).
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