Perhaps you should try some spelling variations:
multiling » multilingues
multilingue » multilinguesue
multiligues » multilingues, multilingual, multipliquen
{uml}miso." » {uml}mismo.", {uml}misio.", {uml}omiso."
{uml}isismo." » {uml}ismismo.", {uml}issismo.", {uml}isistmo."
{uml}ismo." » {uml}mismo.", {uml}sismo.", {uml}istmo."

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: "((multiling or multilingue) or multiligues)(({uml}isismo." OR {uml}miso.") or {uml}ismo.")~.
• Removing quotes may allow a broader search: ((multiling or multilingue) or multiligues)(({uml}isismo. or {uml}miso. ) or {uml}ismo. )~.
• Adding a wildcard symbol may retrieve word variants: "((multiling or multilingue) or multiligues)(({uml}isismo." or {uml}miso.") or {uml}ismo.")*.