First of you have to need requirement of matching.
for example some times in cd player while listening sond you may have experience that one speaker is loudy then other. here in this case both channel of amplefier are not matched properly.
Indirect meaning is the surround environment to these channels are not same.
So first requrement for matching in analog layout is, the transistors need for matching are near by each other.
there lots of techniques for matching if you find it then ok else contact me.