Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"son hoa trac snippets" » "son hoi trac snippets", "son hoa trang snippets", "son hoan tran snippets", "so hoa trac snippets", "mon hoa trac snippets", "son ha trac snippets"

Try widening your search to All Fields.

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