Toe: Stand with your feet parallel to each other - that's 0 toe. Now move your heels further apart - that's toe in. Now move your heels back so your feet are parallel, then move your heels closer together - that's toe out. If you consider your car's wheels doing a similar thing, you should start to understand. For a street car, toe in is more desirable, and a few mm is usually pretty good.
Camber is the relationship of the top of the wheel to the bottom of the wheel. When the top is closer to the centreline of the car than the bottom, that's negative camber. When the bottom is closer, that's positive camber. Negative is better, and for a street car, about -1 degrees is usually quite sufficient.
My experience has been that with negative camber, you should increase the toe in - it apparently lays the tread back down onto the road.
With negative camber and toe out, you should be scrubbing the be-geezus out of the inside tread
blocks.
(All the above is related to the front wheel alignment, for a street car.)