Perhaps you should try some spelling variations:
"duc tan toan snippets" » "duc tan code snippets", "duc tan tran snippets", "duc tap toan snippets", "duc van toan snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"

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