Perhaps you should try some spelling variations:
"chan ke toan snippets" » "chan ke code snippets", "phan ke toan snippets", "chan kim toan snippets", "chuan ky 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"

Try widening your search to All Fields.

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