Perhaps you should try some spelling variations:
peteriow » petrow (Expand Search)
petr » peter (Expand Search), petru (Expand Search), per (Expand Search)
petro » petero (Expand Search), petruo (Expand Search), pero (Expand Search), petrov (Expand Search), petru (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), peri (Expand Search)
petrio » peterio (Expand Search), petruio (Expand Search), perio (Expand Search)
petriui » peteriui (Expand Search), petruiui (Expand Search), periui (Expand Search)
petruui » peteruui (Expand Search), petruuui (Expand Search), peruui (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 (((peteriow OR petr) o) OR ((((petro OR petri) OR petrio) OR (petriui OR petruui)) _)). s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((peteriow OR petr) o) OR ((((petro OR petri) OR petrio) OR (petriui OR petruui)) _)). s.*".