Perhaps you should try some spelling variations:
petriuov » peteriuov (Expand Search), petriiuov (Expand Search), petroiuov (Expand Search)
petrov » peterov (Expand Search), petriov (Expand Search), petroov (Expand Search)
petruvov » peteruvov (Expand Search), petriuvov (Expand Search), petrouvov (Expand Search)
petrioiv » peterioiv (Expand Search), petriioiv (Expand Search), petroioiv (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petr » peter (Expand Search), petri (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 (petrov OR (petruvov OR petrioiv))) OR (peterdi OR (petru OR petr))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriuov OR (petrov OR (petruvov OR petrioiv))) OR (peterdi OR (petru OR petr))) o.s.*".