Perhaps you should try some spelling variations:
visual theme » visual tree, visual thermal, visual theory
visual time » usual time, visual regime, visual types
21st world » 1st world, post world, just world
world does » world goes, world do, world die
does image » des image, codes image, edges image
2008 21st » 2018 21st

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: 2008 21st world does image ((visual theme) OR (visual time)).
• Adding a wildcard symbol may retrieve word variants: 2008 21st world does image ((visual theme) or (visual time))*.