Perhaps you should try some spelling variations:
"python using sat snippets" » "python using data snippets", "python using a snippets", "python using raw snippets"
"trien thi cao snippets" » "trieu thi cao snippets", "tren thi cao snippets", "trien chi cao snippets", "trien thai cao snippets", "trien thi hao snippets", "trien thi bao 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: (((("python using sat snippets") or ("trien thi cao snippets"))) or ("locating bug code snippets"))~.
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