Perhaps you should try some spelling variations:
vorwort deutsche » front deutsche, vorwort mensch
deutsche marine » deutsche karin, deutsche mark, deutsche online
marine species » native species, marine fisheries
der institut » der institute, dem institut, des institut
instituts » institutes, institute, institutions

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: jahrbuch ((der institut) OR (des instituts)) vorwort deutsche marine species~.
• Adding a wildcard symbol may retrieve word variants: jahrbuch ((der institut) or (des instituts)) vorwort deutsche marine species*.