Perhaps you should try some spelling variations:
persa » persas, perla, versa
erba » yerba, verba, werba
verbos » verbo, veros, verbes, verdos, verboos, veryos, vverbos, verbs, varbos
erbos » eros, erbes, erdos, verbos, erbs, arbos
verb » verbo, ver, very
vera » era, vega, ver
erbo » verbo, erb, arbo
verso » versos

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: "Russian (((persa OR erba) OR (verbos OR erbos)) OR ((verb OR vera) OR (erbo OR verso)))~".
• Adding a wildcard symbol may retrieve word variants: Russian (((persa OR erba) OR (verbos OR erbos)) OR ((verb OR vera) OR (erbo OR verso)))*.