对小事争吵：指因为微不足道的事情而发生争吵或争执。
吹毛求疵(find quarrel in a straw), 此释义来源于网络辞典。
... find difficulty in 对 ... 有困难... find quarrel in a straw 鸡蛋里面找骨头,吹毛... find someone in 供应 ...
吹毛求疵；找碴儿
To be frank with you, I have no intention to offend you but your requirement on IELTS is just like find quarrel in a straw.
坦诚跟你交流，我丝毫没有要冒犯您的意思，你们对于IELTS的要求真的貌似是“鸡蛋里找骨头”。