Perhaps you should try some spelling variations:
theorie linguistik » theory linguistic, theoretische linguistik, theory linguistics
studie typology » study typology, studies theology, studies typologies
studie theorie » studies theories, studium theorien, studie therapie

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: (( studie theorie linguistik ) OR ( studie typology linguistics )).
• Adding a wildcard symbol may retrieve word variants: (( studie theorie linguistik ) or ( studie typology linguistics ))*.