Perhaps you should try some spelling variations:
sudostdeutsches historischen » sudostdeutschen historischen (Expand Search)
des sudostdeutsches » des sudostdeutschen (Expand Search), der sudostdeutschen (Expand Search)
buchreihe des » buchreihe der (Expand Search), bucherei des (Expand Search)
band 25 » band 2 (Expand Search), band 5 (Expand Search), band 21 (Expand Search)

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

• Adding a wildcard symbol may retrieve word variants: buchreihe des sudostdeutsches historischen kommission, band 25*.