Perhaps you should try some spelling variations:
workers volunteer » workers volunteers, others volunteer, courses volunteer
worker volunteer » workers volunteers, brother volunteer, coerced volunteer
words volunteer » edwards volunteer, does volunteer, form volunteer
infantry regime » industry regime, infantry relative
new workers » new yorker, new markers, line workers
regiment » regimen, regimes

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