Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran tuan vo snippets" » "tran tuan code snippets", "tran xuan vo snippets", "tran quang vo snippets", "tran thanh vo snippets", "tran than vo snippets", "tran tuan do snippets", "tran toan von snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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