Perhaps you should try some spelling variations:
"la regional conferences" » "la regional consequences", "la regional differences", "la regional convergence", "la regional convergences", "la national conferences", "la regional differencess", "a regional conferences", "ia regional conferences", "sea regional conferences"
"la original conference" » "la retinal conference", "la optical conference", "la final conference", "a original conference", "_ original conference", "2 original conference"
"das original conference" » "das retinal conference", "das optical conference", "das final conference", "his original conference", "its original conference"
"das regional conference" » "das regional convergence", "das national conference", "das regional differences", "das regionale conference", "gas regional conference", "dawns regional conference"

Try widening your search to All Fields.

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: (((("la original conference") OR ("la regional conferences"))) OR ((("das original conference") OR ("das regional conference")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"la original conference\") or (\"la regional conferences\"))) or (((\"das original conference\") OR (\"das regional conference\"))))".
• Removing quotes may allow a broader search: (((( la original conference ) or ( la regional conferences ))) or ((( das original conference ) OR ( das regional conference )))).
• Adding a wildcard symbol may retrieve word variants: (((("la original conference") or ("la regional conferences"))) or ((("das original conference") OR ("das regional conference"))))*.