Perhaps you should try some spelling variations:
workers volunteer » workers volunteers, worker volunteer, others volunteer
new workers » new yorker, new markers
infantry » infant, infants, infancy
regiment » regime

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 workers volunteer infantry (regiment OR regimes)".
• Adding a wildcard symbol may retrieve word variants: 7th new workers volunteer infantry (regiment OR regimes)*.