Perhaps you should try some spelling variations:
petroov » peteroov (Expand Search), petruoov (Expand Search), petrooov (Expand Search)
petruuv » peteruuv (Expand Search), petruuuv (Expand Search), petrouuv (Expand Search)
petrouiuv » peterouiuv (Expand Search), petruouiuv (Expand Search), petroouiuv (Expand Search)
petruuiuv » peteruuiuv (Expand Search), petruuuiuv (Expand Search), petrouuiuv (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (Expand Search)
petr » peter (Expand Search), petru (Expand Search), petro (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: fop ((peteruuov OR (petroov OR (petruuv OR (petrouiuv OR petruuiuv)))) OR (petri OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peteruuov OR (petroov OR (petruuv OR (petrouiuv OR petruuiuv)))) OR (petri OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((peteruuov OR (petroov OR (petruuv OR (petrouiuv OR petruuiuv)))) OR (petri OR petr)) o.s.*.