Perhaps you should try some spelling variations:
"european and american voyages of scientific collaboration" » "european and american voyages of scientific communication", "european and american voyages of scientific computation", "european and american villages of scientific collaboration", "european and aerial voyages of scientific collaboration", "european and african voyagers of scientific collaboration"
"European and American voyages of scientific exploration" » "European and American voyages of scientific application", "European and American voyages of scientific information", "European and American voyages of scientific expeditions"

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 explanation"))) 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 explanation\"))) or (\"european and american voyages of scientific collaboration\"))".
• Removing quotes may allow a broader search: (((( European and American voyages of scientific exploration ) OR ( European and American voyages of scientific explanation ))) 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 explanation"))) or ("european and american voyages of scientific collaboration"))*.