Perhaps you should try some spelling variations:
"bibliotheca historical romania 1925" » "bibliotheca historica romania 1925" (Expand Search), "bibliotheca historica romaniae 1925" (Expand Search), "bibliotheca historical romania 1918" (Expand Search), "bibliotheca historical rumanien 1925" (Expand Search)
"bibliotheca historisch romaniae 1918" » "bibliotheca historica romaniae 1918" (Expand Search), "bibliotheca historisch romania 1918" (Expand Search), "bibliotheca historisch rumanien 1918" (Expand Search), "bibliotheca historisch romaniae 1" (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 romania 1925") OR ("bibliotheca historisch romaniae 1918"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"bibliotheca historical romania 1925\") OR (\"bibliotheca historisch romaniae 1918\"))*".
• Removing quotes may allow a broader search: (( bibliotheca historical romania 1925 ) OR ( bibliotheca historisch romaniae 1918 ))*.