वह —    वाह —    वहां —   वहीं —

वह/वो  pron) he; she; it; that; a suffix denoting one who or that which carries or bears 

वाह  exclamatory word denoting admiration, appreciation, contempt, opposition, surprise, etc.; bravo!; suffix denoting one who or that which carries or bears 

वही  he himself, the same, the very, the very same   

ठीक वही  exactly the same  ठीक  a) right, correct, exact; proper; true; just; adv) all right; precisely, accurately

वहां (पर)  there  वहां से  therefrom, thence (de ahí, de allí); from that side 

वहीं  at that very place or time; ibid (ibídem [allí mismo])