Perhaps you should try some spelling variations:
"fop peterov OR petruuv OR peteruuv OR petrv OR petriv OR petriiv OR petr o.s.*" » "fop peterov OR peteruuv OR peteruuv OR peterv OR peteriv OR peteriiv OR peter o.s.*" (Expand Search), "fop peterov OR petriuuv OR peteruuv OR petriv OR petriiv OR petriiiv OR petri o.s.*" (Expand Search), "fop peterov OR petruuuv OR peteruuv OR petruv OR petruiv OR petruiiv OR petru o.s.*" (Expand Search)

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

• Removing quotes may allow a broader search: fop (((peterov OR (petruuv OR peteruuv)) OR ((petrv OR petriv) OR petriiv)) OR petr) o.s.*.