探查

探查	tàn chá	to examine / to probe / to scout out / to nose around
探	tàn	to explore / to search out / to scout / to visit / to stretch forward
查	Zhā	surname Zha
查	chá	to research / to check / to investigate / to examine / to refer to / to look up (e.g. a word in a dictionary)
查	zhā	variant of 楂