Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets", "python missing data slippers"
"tran doc 2 snippets" » "tran duc 2 snippets", "than doc 2 snippets", "tranh duoc 2 snippets", "tran doc 1 snippets", "tran doc 3 snippets", "tran doc 4 snippets", "tran doc 2 slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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