Perhaps you should try some spelling variations:
"logician" » "logicians", "logical"
"logicas" » "logical", "logics", "logicae", "logicals", "logicss"
"logica" » "logical", "logics"
"logiciel" » "logiciels", "logical"

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: (("logician" OR ("logicas" OR "logica")) OR "logiciel").
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"logician\" or (\"logicas\" OR \"logica\")) or \"logiciel\")".
• Removing quotes may allow a broader search: (( logician or ( logicas OR logica )) or logiciel ).
• Adding a wildcard symbol may retrieve word variants: (("logician" or ("logicas" OR "logica")) or "logiciel")*.