赶巧

赶巧	gǎn qiǎo	just by chance; as chance would have it
赶	gǎn	to overtake; to catch up with / to hurry; to rush / to try to catch (the bus etc) / to drive (cattle etc) forward; to drive (sb) away / to avail oneself of (an opportunity) / until; by (a certain time)
巧	qiǎo	opportunely / coincidentally / as it happens / skillful / timely