Perhaps you should try some spelling variations:
"fop petrov OR petruv OR pero OR peteri OR petero OR petri OR petruio OR peter o.s.*" » "fop petro OR petruv OR pero OR peteri OR petero OR petri OR petruio OR peter o.s.*" (Expand Search), "fop petrov OR petru OR pero OR peteri OR petero OR petri OR petruio OR peter o.s.*" (Expand Search), "fop petrov OR petruv OR petro OR peteri OR petero OR petri OR petruio OR peter o.s.*" (Expand Search), "fop petrov OR petruv OR per OR peteri OR petero OR petri OR petruio OR peter o.s.*" (Expand Search), "fop petrov OR petruv OR pro OR peteri OR petero OR petri OR petruio OR peter o.s.*" (Expand Search), "fop petrov OR petruv OR pero OR peterdi OR petero OR petri OR petruio OR peter o.s.*" (Expand Search), "fop petrov OR petruv OR pero OR peters OR petero OR petri OR petruio OR peter o.s.*" (Expand Search), "fop petrov OR petruv OR pero OR peteri OR peters OR petri OR petruio OR peter o.s.*" (Expand Search), "fop petrov OR petruv OR pero OR peteri OR petro OR petri OR petruio OR peter 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 ((petrov OR petruv) OR ((((pero OR peteri) OR petero) OR (petri OR petruio)) OR peter)) o.s.*.