Perhaps you should try some spelling variations:
proportional representations » propositional representations, biproportional representation, proportionalen reprasentation
representations bloma » representation block, representations beltita, representations boolean
representation local » representations local, representations locally, representation lexical

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( hokkaido proportional representations bloma ) OR ( Hokkaido proportional representation local )).
• Adding a wildcard symbol may retrieve word variants: (( hokkaido proportional representations bloma ) or ( Hokkaido proportional representation local ))*.