摸索 + 前进
The verb 摸索 (mōsuǒ) means 'to grope' or 'to feel one's way.' It describes moving forward cautiously by touch, especially in the dark, or figuratively searching for a method or solution. It often pairs with 前进 (to advance) to describe groping one's way forward.
他在黑暗中摸索着找到了电灯开关。
tā zài hēi'àn zhōng mōsuǒ zhe zhǎodào le diàndēng kāiguān.
He groped around in the darkness and found the light switch.
我们还在摸索适合自己的学习方法。
wǒmen hái zài mōsuǒ shìhé zìjǐ de xuéxí fāngfǎ.
We are still exploring to find a learning method that suits us.
她摸索了好一会儿才找到口袋里的钥匙。
tā mōsuǒ le hǎo yīhuìr cái zhǎodào kǒudài lǐ de yàoshi.
She fumbled around for quite a while before finding the key in her pocket.