Perhaps you should try some spelling variations:
"lochating bug code snippets" » "locating bug code snippets", "lochating bug core snippets"
"python using java snippets" » "python using data snippets"
"den hoc cho snippets" » "dien hoc cho snippets", "dan hoc cho snippets", "de hoc cho snippets", "den hoc cao snippets", "den hoc pho snippets", "den hoc co snippets"

Try widening your search to All Fields.

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