Perhaps you should try some spelling variations:
multiling » multilingues
multilinguismo » multilinguesuismo, multilingualism, multilingumismo, multilingusismo, multilinguistmo
multilingue » multilinguesue
multilingueues » multilinguesueues, multilingues, multiligues
{uml}ismo." » {uml}mismo.", {uml}sismo.", {uml}istmo."
{uml}mismos." » {uml}mmismos.", {uml}msismos.", {uml}mistmos.", {uml}mismo."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: "(((multiling OR multilinguismo) OR multilingue) OR multilingueues)({uml}ismo." or {uml}mismos.")~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"(((multiling OR multilinguismo) OR multilingue) OR multilingueues)({uml}ismo.\" or {uml}mismos.\")".
• Removing quotes may allow a broader search: (((multiling OR multilinguismo) OR multilingue) OR multilingueues)({uml}ismo. or {uml}mismos. ).
• Adding a wildcard symbol may retrieve word variants: "(((multiling OR multilinguismo) OR multilingue) OR multilingueues)({uml}ismo." or {uml}mismos.")*.