Perhaps you should try some spelling variations:
multiling » multilingues
multilingue » multilinguesue
multilinguismo » multilinguesuismo, multilingualism, multilingumismo, multilingusismo, multilinguistmo
{uml}uisme." » {uml}usme.", {uml}uismo."
{uml}ismo." » {uml}mismo.", {uml}sismo.", {uml}istmo."
{uml}simo." » {uml}simon.", {uml}sido.", {uml}sino."

Try widening your search to All Fields.

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 multilingue) or multilinguismo)({uml}uisme." or ({uml}ismo." or {uml}simo."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: "((multiling or multilingue) or multilinguismo)({uml}uisme." OR ({uml}ismo." or {uml}simo.")).
• Removing quotes may allow a broader search: ((multiling or multilingue) or multilinguismo)({uml}uisme. or ({uml}ismo. or {uml}simo. )).
• Adding a wildcard symbol may retrieve word variants: "((multiling or multilingue) or multilinguismo)({uml}uisme." or ({uml}ismo." or {uml}simo."))*.