Perhaps you should try some spelling variations:
visual theme » visual time, visual thermal, visual theory
visual tree » visual trace, visual time, visual target
10th world » 20th world, 18th world, 19th world
das primat » das private, das primare
2008 10th » 2008 11th, 2018 10th, 2009 10th
world das » world data, world does, world do

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 10th world das primat ((visual tree) OR (visual theme))".
• Adding a wildcard symbol may retrieve word variants: 2008 10th world das primat ((visual tree) OR (visual theme))*.