If you use a 3 word phrase in your backlins, does Google/Yahoo give you double credit if the are placed on an Authority site? X Y Z Link: Scores independantly for keyword phrase XYZ? Scores independantly for keyword phrase XY? Scores independantly for keyword phrase XZ? And so on?
Hmm this is just a personal guess and from something that ive read, i think that its divided for x y z and then x gets the most of the value, y gets less and z gets least value... If someone has an actual evidence of this please let me know as well. =\ But I guess most of the people can just guess since we don't really know how it works.