Perhaps you should try some spelling variations:
military actions » military relations, military aviation, military pensions
military action » military aviation, military education, military execution
military acts » military art, military 18th, military 19th
12th century » 18th century, 19th century, 17th century
2f history » imf history, etf history, ref history
2012 12th » 2015 12th

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: %((((((military acts) OR (military action))) OR (military actions))) OR (military aspects)) AND science %2f history %2012 12th century%22*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((((military acts) OR (military action))) or (military actions))) or (military aspects)) and science %2f history %2012 12th century%22*".