Perhaps you should try some spelling variations:
factor » factors, factores, factosr, faltor, factr, faceor
ffactor » ffactors, ffactores, bifactor, effector, ffactosr, ffaltor, ffactr, ffaceor
factorrres » factorsrres, factoresrres, factosrrres, faltorrres, factrrres, factores, factortes, faceorrres
acto » actos, alto, act
ffactr » ffacer
fact » face

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "Peter McDonald (((factor OR (ffactr OR (ffactor OR (acto OR factorrres)))) OR fact))~".
• Adding a wildcard symbol may retrieve word variants: Peter McDonald (((factor OR (ffactr OR (ffactor OR (acto OR factorrres)))) OR fact))*.