Perhaps you should try some spelling variations:
"co hoc chieu snippets" » "co hoc code snippets", "co hoc thieu snippets", "co ho chieu snippets", "co hoc hien 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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