Perhaps you should try some spelling variations:
multiling » multilingue, multilingues
multilinguismo » multilingueuismo, multilinguesuismo, multilingualism, multilingumismo, multilingusismo, multilinguiso
{uml}uisme." » {uml}usme.", {uml}uismo."
{uml}ismo." » {uml}mismo.", {uml}sismo.", {uml}iso."
{uml}smismo." » {uml}smmismo.", {uml}smsismo.", {uml}smiso.", {uml}asimismo."

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