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

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}mismo.) or {uml}sismo.) or {uml}ismo.)~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (multiling OR multilingues)((({uml}iismo. OR {uml}mismo.) OR {uml}sismo.) OR {uml}ismo.).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(multiling or multilingues)((({uml}iismo. OR {uml}mismo.) or {uml}sismo.) or {uml}ismo.)".
• Adding a wildcard symbol may retrieve word variants: (multiling or multilingues)((({uml}iismo. OR {uml}mismo.) or {uml}sismo.) or {uml}ismo.)*.