Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"den nen cac snippets" » "den nen code snippets", "tren nen cac snippets", "dieu nen cac snippets", "dung nen cac snippets", "den den cac snippets", "den vien cac snippets", "den dien cac snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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