Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"kiem tri cac snippets" » "kiem tri code snippets", "kiem tra cac snippets", "kien tri cac snippets", "kiem trieu cac snippets", "kiem tri mac snippets", "kiem tai cac snippets", "kiem tri dac snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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