Perhaps you should try some spelling variations:
"bibliotheca historical romaniae 1918" » "bibliotheca historica romaniae 1918" (Expand Search), "bibliotheca historical romania 1918" (Expand Search), "bibliotheca historical romania 1925" (Expand Search), "bibliotheca historical romaniae 1" (Expand Search)
"bibliotheca historical rumanien 1918" » "bibliotheca historica rumanien 1918" (Expand Search), "bibliotheca historica romaniae 1918" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("bibliotheca historical romaniae 1918") OR ("bibliotheca historical rumanien 1918"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"bibliotheca historical romaniae 1918\") OR (\"bibliotheca historical rumanien 1918\"))*".
• Removing quotes may allow a broader search: (( bibliotheca historical romaniae 1918 ) OR ( bibliotheca historical rumanien 1918 ))*.