Perhaps you should try some spelling variations:
petriov » peteriov (Expand Search), petruiov (Expand Search), petroiov (Expand Search)
petruiuuiov » peteruiuuiov (Expand Search), petruuiuuiov (Expand Search), petrouiuuiov (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (Expand Search)
petruuo » peteruuo (Expand Search), petruuuo (Expand Search), petrouuo (Expand Search)
petriuuo » peteriuuo (Expand Search), petruiuuo (Expand Search), petroiuuo (Expand Search)
petr » peter (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 ((petriov OR petruiuuiov) OR ((petri OR ((petruuo OR peteruuo) OR petriuuo)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriov OR petruiuuiov) OR ((petri OR ((petruuo OR peteruuo) OR petriuuo)) OR petr)) o.s.*".