Perhaps you should try some spelling variations:
international friction » international aviation, international action, international edition
international rican » international african, international rice, international american
friction economy » fiction economy, aviation economy, production economy
economy series » economics series
rican economy » african economy, roman economy, rich economy

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: "(( international rican economy series ) OR ( international friction economy series ))~".
• Adding a wildcard symbol may retrieve word variants: (( international rican economy series ) OR ( international friction economy series ))*.