Perhaps you should try some spelling variations:
cadth optimal » path optimal, width optimal, health optimal
optimal upper » optimal support, optimal supply
dich optimal » sich optimal, durch optimal, nicht optimal
optimal use » optimal time
upper port » upper part, upper parts, upper north
use report » use reports, user report, lse report

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: (( cadth optimal upper port ) OR ((( cadth optimal use report ) OR ( dich optimal use report )))).
• Adding a wildcard symbol may retrieve word variants: (( cadth optimal upper port ) or ((( cadth optimal use report ) or ( dich optimal use report ))))*.