Perhaps you should try some spelling variations:
paraboloid » paraboloides
paraboloideseees » paraboloideseseees, paraboloides
paraboloidal » paraboloidesal, paraboloides, parabolica, parabolicas
paraboloide » paraboloidese
paraboloids » paraboloidess
paraboloidess » paraboloidesess, paraboloides

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: ((paraboloid OR parabolic) OR (parabolices OR (paraboloideseees OR ((paraboloidal OR paraboloide) OR (paraboloids OR paraboloidess)))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((paraboloid OR parabolic) or (parabolices or (paraboloideseees or ((paraboloidal or paraboloide) or (paraboloids or paraboloidess)))))~".
• Adding a wildcard symbol may retrieve word variants: ((paraboloid OR parabolic) or (parabolices or (paraboloideseees or ((paraboloidal or paraboloide) or (paraboloids or paraboloidess)))))*.