Perhaps you should try some spelling variations:
multiling » multilingue
multilingues » multilingueues, multilingue, multilinguismo
multilingueues » multilingueueues, multilingue, multiligues
{uml}simo. » {uml}simon., {uml}sido., {uml}sino.
{uml}umsismo. » {uml}umsmismo., {uml}umssismo., {uml}umsistmo.
{uml}ismo. » {uml}mismo., {uml}sismo., {uml}istmo.

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) or multilingueues)(({uml}umsismo. or {uml}simo.) or {uml}ismo.)~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((multiling OR multilingues) OR multilingueues)(({uml}umsismo. OR {uml}simo.) OR {uml}ismo.).
• Adding a wildcard symbol may retrieve word variants: ((multiling or multilingues) or multilingueues)(({uml}umsismo. or {uml}simo.) or {uml}ismo.)*.