Perhaps you should try some spelling variations:
petriuov » petrov (Expand Search), peteriuov (Expand Search), petruiuov (Expand Search), petroiuov (Expand Search)
petriov » peteriov (Expand Search), petruiov (Expand Search), petroiov (Expand Search)
petruv » peteruv (Expand Search), petruuv (Expand Search), petrouv (Expand Search)
petruouuiv » peteruouuiv (Expand Search), petruuouuiv (Expand Search), petrououuiv (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (Expand Search)
petr » peter (Expand Search), petru (Expand Search), petro (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: fop ((petriuov OR ((petriov OR (petruv OR petruouuiv)) OR peteroiiov)) OR (petri OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriuov OR ((petriov OR (petruv OR petruouuiv)) OR peteroiiov)) OR (petri OR petr)) o.s.*".