What are the idioms related to "buying and selling"?

Wu Cheng'en Journey to the West Fair Trade? [G not [[G not [gōng píng jiāo yì]]]]: Fair and reasonable business. ?

Wu's "Strange Goods Seen in Twenty Years" is an authentic work [huò zhēn jià shí]: it describes the truth, and it is true.

Wu's Unfamiliar Situation Seen in Twenty Years: No Deception.

Everything done in "Han Feizi's Hidden Theory" makes up for the mistake [[làn yúchūng shù]]: people who can't play tricks are mixed in the team that plays tricks. ?

The Biography of Jiang Zhiyuan in Song Dynasty has everything [yěng yǒu jěn yǒu]: it is completely described.