Perhaps you should try some spelling variations:
international settler » international letters, international setting, international settlement
international case » international climate, international center, international capital
settler economies » settler colonies, settlers economic, scale economies
economies walter » economies after, economies chapter, economies factor
case economies » base economies, scale economies, based economies
economies have » economies has, economies change, economies a

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( international case economies walter ) OR ( international settler economies have ))~.
• Adding a wildcard symbol may retrieve word variants: (( international case economies walter ) or ( international settler economies have ))*.