Perhaps you should try some spelling variations:
hydration status » migration status, operation status, radiation status
case development » care development, based development, scale development
technology 1.3 » technology 2.3, technology 3.3, technology 1.1
1.3 hydration » 7.2 hydration, 7.3 dehydration, _ hydration
costs case » costs cash
fr e » fur e, dr e, f e
r e » dr e

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: "technology 1.3 hydration status ((fr e) OR (r e)) communication costs case development 1 africa.~".
• Adding a wildcard symbol may retrieve word variants: technology 1.3 hydration status ((fr e) OR (r e)) communication costs case development 1 africa.*.