Perhaps you should try some spelling variations:
petroiw » petrow (Expand Search), peteroiw (Expand Search), petruoiw (Expand Search), petrooiw (Expand Search)
petris » peteris (Expand Search), petruis (Expand Search), petrois (Expand Search)
petrivw » peterivw (Expand Search), petruivw (Expand Search), petroivw (Expand Search)
petr » peter (Expand Search), petru (Expand Search), petro (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (Expand Search)
peteri » peterdi (Expand Search), peter (Expand Search), peters (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((petris OR petroiw) OR (petrivw OR peteruvw)) o) OR ((petr OR (petri OR peteri)) _)). s.~".
• Adding a wildcard symbol may retrieve word variants: fop ((((petris OR petroiw) OR (petrivw OR peteruvw)) o) OR ((petr OR (petri OR peteri)) _)). s.*.