Perhaps you should try some spelling variations:
"phap cac data snippets" » "phap cach data snippets", "phan cac data snippets", "pha cac data snippets", "phap cac dan snippets", "phap cac dang snippets", "phap cac dai snippets"
"python using c snippets" » "python using lc snippets", "python using a snippets", "python using _ snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("phap cac data snippets") or ("python using c snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap cac data snippets") OR ("python using c snippets"))) OR ("locating bug code snippets")).
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