Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran va so snippets" » "tran va code snippets", "tran van so snippets", "trang va so snippets", "tranh va so snippets", "tran ma so snippets", "tran va su snippets", "tran va co snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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