Perhaps you should try some spelling variations:
petruuv » peteruuv (Expand Search), petriuuv (Expand Search), petruuuv (Expand Search)
petriuuv » peteriuuv (Expand Search), petriiuuv (Expand Search), petruiuuv (Expand Search)
petruou » peteruou (Expand Search), petriuou (Expand Search), petruuou (Expand Search)
petriuuou » peteriuuou (Expand Search), petriiuuou (Expand Search), petruiuuou (Expand Search)
petriuou » peteriuou (Expand Search), petriiuou (Expand Search), petruiuou (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petru (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 ((petruuv OR petriuuv) OR ((((petruou OR petriuuou) OR peteruou) OR petriuou) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruuv OR petriuuv) OR ((((petruou OR petriuuou) OR peteruou) OR petriuou) OR petr)) o.s.*".