The phrase "all these groups" refers to the groups of servants that Jacob sent to give gifts to Esau. Alternate translation: "Why did you send all of those different groups to meet me?"
The phrase "find favor" is an idiom which means to be approved of by someone. Also, sight represents judgment or evaluation. Alternate translation: "So that you, my master, would be pleased with me" (See: [[rc://en/ta/man/jit/figs-idiom]] and [[rc://en/ta/man/jit/figs-metaphor]])