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

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