Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran tuan de snippets" » "tran tuan code snippets", "tran xuan de snippets", "tran quang de snippets", "tran thanh de snippets", "tran tuan le snippets", "tran luan de snippets", "tran toan de snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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