Perhaps you should try some spelling variations:
petruov » petrov (Expand Search), petriuov (Expand Search), petruuov (Expand Search), petrouov (Expand Search)
petriio » petriiio (Expand Search), petruiio (Expand Search), petroiio (Expand Search)
petruuuio » petriuuuio (Expand Search), petruuuuio (Expand Search), petrouuuio (Expand Search)
petroiuio » petrioiuio (Expand Search), petruoiuio (Expand Search), petrooiuio (Expand Search)
petrioiuio » petriioiuio (Expand Search), petruioiuio (Expand Search), petroioiuio (Expand Search)
petr » petri (Expand Search), petru (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 (petruov OR ((petriio OR (petruuuio OR (petroiuio OR petrioiuio))) OR (petr OR peter))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (petruov OR ((petriio OR (petruuuio OR (petroiuio OR petrioiuio))) OR (petr OR peter))) o.s.*".