Perhaps you should try some spelling variations:
petrov » petro (Expand Search), peterov (Expand Search), petriov (Expand Search), petroov (Expand Search)
petru » pentru (Expand Search), petri (Expand Search), peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
peteri » peterdi (Expand Search), peter (Expand Search), petri (Expand Search)
petriiiv » peteriiiv (Expand Search), petriiiiv (Expand Search), petroiiiv (Expand Search)
petroiio » peteroiio (Expand Search), petrioiio (Expand Search), petrooiio (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 ((petrov OR petriiiv) OR (((petru OR peteri) OR petroiio) OR (petr OR peteri))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petrov OR petriiiv) OR (((petru OR peteri) OR petroiio) OR (petr OR peteri))) o.s.*".