Perhaps you should try some spelling variations:
productive » productivo, productiva, productivas
productor » productos, producto, reproductor
transductor » traductor
transduction » translocation, transition
translation » transition
transaction » transition, transacciones, transaccional
transactions » transitions, transaccioness, transaccionals, transition

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: ((productive OR productor) OR (transductor OR ((transduction OR translation) OR (transaction OR transactions))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((productive or productor) or (transductor or ((transduction OR translation) or (transaction or transactions))))~".
• Adding a wildcard symbol may retrieve word variants: ((productive or productor) or (transductor or ((transduction OR translation) or (transaction or transactions))))*.