Perhaps you should try some spelling variations:
beck theater » buch theater, brecht theater, greek theater
book theater » folk theater, work theater, book chapter
dem theater » das theater, im theater
theater art » theater part, theater fast, theater als
laura dem » laura de, laura del, laura den

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: (( pen/laura dem theater art ) OR ( pen/laura ((beck theater) OR (book theater)) fast )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( pen/laura dem theater art ) or ( pen/laura ((beck theater) OR (book theater)) fast ))".
• Adding a wildcard symbol may retrieve word variants: (( pen/laura dem theater art ) or ( pen/laura ((beck theater) OR (book theater)) fast ))*.