Perhaps you should try some spelling variations:
peri » per (Expand Search)
petrov » peterov (Expand Search), petroov (Expand Search), perov (Expand Search)
petruov » peteruov (Expand Search), petrouov (Expand Search), peruov (Expand Search)
petri » peteri (Expand Search), petroi (Expand Search), peri (Expand Search)
petru » peteru (Expand Search), petrou (Expand Search), peru (Expand Search)
petriu » peteriu (Expand Search), petroiu (Expand Search), periu (Expand Search)
petr » peter (Expand Search), petro (Expand Search), per (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 ((petrov OR petruov) OR ((((peri OR petri) OR petru) OR petriu) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petrov OR petruov) OR ((((peri OR petri) OR petru) OR petriu) OR petr)) o.s.*".