Perhaps you should try some spelling variations:
pero » petro (Expand Search), per (Expand Search), pro (Expand Search)
petero » peters (Expand Search), petro (Expand Search)
petroi » petri (Expand Search), petro (Expand Search), petrov (Expand Search)
petrui » petri (Expand Search), pentrui (Expand Search), petrii (Expand Search)
petruuv » pentruuv (Expand Search), petriuv (Expand Search)
petruuuv » pentruuuv (Expand Search), petriuuv (Expand Search)
petru » pentru (Expand Search), petri (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 ((petruuv OR petruuuv) OR (((pero OR petero) OR (petroi OR petrui)) OR (petru OR peter))) o.s.~".
• Adding a wildcard symbol may retrieve word variants: fop ((petruuv OR petruuuv) OR (((pero OR petero) OR (petroi OR petrui)) OR (petru OR peter))) o.s.*.