Perhaps you should try some spelling variations:
kaiser taschenbucher » kohlhammer taschenbucher, uni taschenbucher
duden taschenbucher » urban taschenbucher, uni taschenbucher, dalp taschenbucher
un taschenbucher » uni taschenbucher, uni traschenbucher, urban taschenbucher
und psycho » und psyche
geist und » geistes und

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((kaiser taschenbucher) or (((duden taschenbucher) OR (un taschenbucher)))). geist und psycho~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((kaiser taschenbucher) OR (((duden taschenbucher) OR (un taschenbucher)))). geist und psycho*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((kaiser taschenbucher) or (((duden taschenbucher) OR (un taschenbucher)))). geist und psycho*".