Perhaps you should try some spelling variations:
workers volunteer » workers volunteers, worker volunteer, others volunteer
volunteer infants » volunteer infantry, volunteer inputs, volunteer bands
volunteer infancy » volunteer infantry, volunteer impact
infants regiment » infantry regiment, infants treatment, its regiment
infancy regiment » infantry regiment, infancy treatment
new workers » new yorker, new markers

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 workers volunteer infants regiment ) OR ( 7th new workers volunteer infancy regiment )).
• Adding a wildcard symbol may retrieve word variants: (( 7th new workers volunteer infants regiment ) or ( 7th new workers volunteer infancy regiment ))*.