Perhaps you should try some spelling variations:
infants regiment » infantry regiment, infants treatment
form volunteer » foot volunteer, forming volunteer, first volunteer
from volunteer » from volunteers, from volunteered, foot volunteer
its regiment » his regiment, 9th regiment, das regiment

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