Perhaps you should try some spelling variations:
scientific collaboration » scientific communication, scientific explanation, scientific computation
scientific exploration » scientific explanation, scientific application, scientific information
american voyages » american villages, aerial voyages, african voyagers

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: (( European AND American voyages of scientific exploration ) OR ( European AND American voyages of scientific collaboration )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( European and American voyages of scientific exploration ) OR ( European and American voyages of scientific collaboration ))".
• Adding a wildcard symbol may retrieve word variants: (( European and American voyages of scientific exploration ) OR ( European and American voyages of scientific collaboration ))*.