Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hyun yong cu snippets" » "hyun yong code snippets", "hyun you cu snippets", "jun yong cu snippets", "yuan yong cu snippets", "hyun cong cu snippets", "hyun yong chul snippets", "hyun cong cua snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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