Perhaps you should try some spelling variations:
multiling » multilingue, multilingues
multilinguismo » multilingueuismo, multilinguesuismo, multilingualism, multilingusismo, multilinguistmo, multilinguiso
multiligues » multilingues, multilingue, multilingual
{uml}ismo." » {uml}sismo.", {uml}istmo.", {uml}iso."
{uml}mismo." » {uml}msismo.", {uml}mistmo.", {uml}miso."
{uml}sismos." » {uml}ssismos.", {uml}sistmos.", {uml}sisos.", {uml}mismos."

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