Perhaps you should try some spelling variations:
worker volunteer » workers volunteers, brother volunteer, coerced volunteer
words volunteer » edwards volunteer, does volunteer, form volunteer
infant regiment » infantry regiment, infants treatment, infant recipients

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: "7th new ((words volunteer) OR (worker volunteer)) infant regiment".
• Adding a wildcard symbol may retrieve word variants: 7th new ((words volunteer) OR (worker volunteer)) infant regiment*.