Perhaps you should try some spelling variations:
multiling » multilingues
multilingue » multilinguesue
multilingueues » multilinguesueues, multilingues, multiligues
{uml}sino." » {uml}sin.", {uml}nino.", {uml}sido."
{uml}usmismo." » {uml}asimismo."
{uml}sismo." » {uml}sismos.", {uml}mismo.", {uml}simo."

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