Perhaps you should try some spelling variations:
primate visual » primary visual
does primate » does private, does climate, does primary
visual time » usual time, visual regime, visual types
world does » world goes, world do, world die
2008 iot » 2008 iso, 2008 1st, 2008 im
2008 iet » 2008 ieee

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: "((2008 iot) OR (2008 iet)) world does primate visual time".
• Adding a wildcard symbol may retrieve word variants: ((2008 iot) OR (2008 iet)) world does primate visual time*.