Perhaps you should try some spelling variations:
military actions » military relations, military aviation, military pensions
14th century » 18th century, 19th century, 17th century
2f history » imf history, etf history, ref history
2018 14th » 2018 15th, 2018 4th, 2018 5th

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 actions AND science %2f history %2018 14th century%22.
• Adding a wildcard symbol may retrieve word variants: %military actions and science %2f history %2018 14th century%22*.