Perhaps you should try some spelling variations:
multiling » multilingue
multilingues » multilingueues, multilingue, multilinguismo
{uml}uisme." » {uml}usme."
{uml}uismo." » {uml}mismo.", {uml}iismo.", {uml}umismo.", {uml}uistmo.", {uml}uiso."
{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}uisme." OR {uml}uismo.") or ({uml}ismo." or {uml}sismo."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: "(multiling OR multilingues)(({uml}uisme." OR {uml}uismo.") OR ({uml}ismo." or {uml}sismo.")).
• Removing quotes may allow a broader search: (multiling or multilingues)(({uml}uisme. OR {uml}uismo. ) or ({uml}ismo. or {uml}sismo. )).
• Adding a wildcard symbol may retrieve word variants: "(multiling or multilingues)(({uml}uisme." OR {uml}uismo.") or ({uml}ismo." or {uml}sismo."))*.