Perhaps you should try some spelling variations:
multiling » multilingue
multilingues » multilingueues, multilingue, multilinguismo
{uml}uismo." » {uml}mismo.", {uml}sismo.", {uml}iismo.", {uml}umismo.", {uml}usismo.", {uml}uistmo."
{uml}uisme." » {uml}usme."
{uml}ismo." » {uml}mismo.", {uml}sismo.", {uml}istmo."
{uml}smismo." » {uml}smmismo.", {uml}smsismo.", {uml}smistmo.", {uml}asimismo."

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