Perhaps you should try some spelling variations:
petr » peter (Expand Search), petri (Expand Search), petro (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search), pentru (Expand Search), petri (Expand Search)
petroou » peteroou (Expand Search), petrioou (Expand Search), petrooou (Expand Search)
petrov » peterov (Expand Search), petriov (Expand Search), petroov (Expand Search), petro (Expand Search)
petroov » peteroov (Expand Search), petrioov (Expand Search), petrooov (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petroiov (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (petr OR (petru OR (petroou OR ((petrov OR petroov) OR petriov)))) _. s.~".
• Adding a wildcard symbol may retrieve word variants: fop (petr OR (petru OR (petroou OR ((petrov OR petroov) OR petriov)))) _. s.*.