Perhaps you should try some spelling variations:
coerced volunteer » courses volunteer
worker volunteer » workers volunteers, brother volunteer, courses volunteer
words volunteer » edwards volunteer, form volunteer, workers volunteers
does volunteer » do volunteer, rules volunteer, does voluntary
infantry » infant, infants, infancy
regiment » regimen, regimes, regime

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: (( 7th new ((worker volunteer) OR (coerced volunteer)) infantry regiment ) OR ( 7th new ((words volunteer) OR (does volunteer)) infantry regiment )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( 7th new ((worker volunteer) OR (coerced volunteer)) infantry regiment ) or ( 7th new ((words volunteer) or (does volunteer)) infantry regiment ))".
• Adding a wildcard symbol may retrieve word variants: (( 7th new ((worker volunteer) OR (coerced volunteer)) infantry regiment ) or ( 7th new ((words volunteer) or (does volunteer)) infantry regiment ))*.