Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets"
"locating bug core snippets" » "locating bug code snippets"
"cum anh so snippets" » "cum anh code snippets", "cum danh so snippets", "cuu anh so snippets", "cuoi anh so snippets", "cum anh son snippets", "cum anh co snippets"

Try widening your search to All Fields.

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