Perhaps you should try some spelling variations:
peru » petru (Expand Search), per (Expand Search)
petroviu » petrovici (Expand Search), petrov (Expand Search), petrovviu (Expand Search), petriviu (Expand Search), petruviu (Expand Search), peteroviu (Expand Search), petrioviu (Expand Search), petruoviu (Expand Search)
petro » petrov (Expand Search), petri (Expand Search), petru (Expand Search), petero (Expand Search), petrio (Expand Search), petruo (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petruiov (Expand Search)
petruv » peteruv (Expand Search), petriuv (Expand Search), petruuv (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petru (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 ((petriov OR petruv) OR ((peru OR petroviu) OR ((petro OR petero) OR petr))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriov OR petruv) OR ((peru OR petroviu) OR ((petro OR petero) OR petr))) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((petriov OR petruv) OR ((peru OR petroviu) OR ((petro OR petero) OR petr))) o.s.*.