Perhaps you should try some spelling variations:
cadth optimal » path optimal, width optimal, health optimal
optimal user » optimal upper, optimal fused, optimal laser
dich optimal » durch optimal, nicht optimal, buch optimal
sich optimal » nicht optimal, buch optimal, search optimal
optimal use » optimal time
use report » use reports, user report, lse report
user port » user part, user report, user portal

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 user port ) OR ((( cadth optimal use report ) OR ( ((dich optimal) OR (sich optimal)) use report )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( cadth optimal user port ) or ((( cadth optimal use report ) or ( ((dich optimal) OR (sich optimal)) use report ))))".
• Adding a wildcard symbol may retrieve word variants: (( cadth optimal user port ) or ((( cadth optimal use report ) or ( ((dich optimal) OR (sich optimal)) use report ))))*.