Perhaps you should try some spelling variations:
primate visual » primary visual
visual thermo » virtual thermo, visual thermal, visual terms
does primate » does private, does climate, does primary
iso world » iosco world, two world, wto world
ilo world » halo world, two world, wto world

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 ((iso world) OR (ilo world)) does primate visual thermo".
• Adding a wildcard symbol may retrieve word variants: 2008 ((iso world) OR (ilo world)) does primate visual thermo*.