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"
"dem hoc cho snippets" » "de hoc cho snippets", "dem hoi cho snippets", "den hoc cho snippets", "dem hoc cao snippets", "dem hoc pho snippets", "dem hoc co snippets"

Try widening your search to All Fields.

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