Perhaps you should try some spelling variations:
multiling » multilingues
multilingue » multilinguesue
{uml}uismo." » {uml}mismo.", {uml}sismo.", {uml}iismo.", {uml}umismo.", {uml}usismo.", {uml}uistmo."
{uml}comiso." » {uml}comico.", {uml}comino.", {uml}comido."
{uml}ismo." » {uml}mismo.", {uml}sismo.", {uml}istmo."
{uml}sistmo." » {uml}sismo.", {uml}istmo.", {uml}sisto."

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