Perhaps you should try some spelling variations:
multiling » multilingue
multilingues » multilingueues, multilingue, multilinguismo
{uml}iismo." » {uml}mismo.", {uml}itsmo.", {uml}uismo.", {uml}imismo.", {uml}iistmo.", {uml}iiso."
{uml}ismo." » {uml}mismo.", {uml}istmo.", {uml}iso."
{uml}sismo." » {uml}smismo.", {uml}sistmo.", {uml}siso.", {uml}sismos.", {uml}mismo.", {uml}simo."

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