Perhaps you should try some spelling variations:
some economists » women economists, some economics, some economies
home economists » women economists, home economics, how economists
modern economy » open economy, modern astronomy
better modern » letters modern, better model, better models
world better » world peter, world between, build better

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: (( world bank ((some economists) OR (home economists)) ) OR ( world better modern economy )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( world bank ((some economists) OR (home economists)) ) or ( world better modern economy ))".
• Adding a wildcard symbol may retrieve word variants: (( world bank ((some economists) OR (home economists)) ) or ( world better modern economy ))*.