Perhaps you should try some spelling variations:
tendens » tendenz, tendons, tendent
pendens » pendent, pendants
bienes » bienen, dienes
fiend" » find", fien", tiend"
frend" » trend", freud", fremd"

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: "((tendens or pendens) or (bienes or (fiennes OR viennese))) ((fiend" OR field") or frend").
• Removing quotes may allow a broader search: ((tendens or pendens) or (bienes or (fiennes OR viennese))) ((fiend or field ) or frend ).
• Adding a wildcard symbol may retrieve word variants: "((tendens or pendens) or (bienes or (fiennes OR viennese))) ((fiend" or field") or frend")*.