Perhaps you should try some spelling variations:
multiling » multilingues
multilingue » multilinguesue
multilinguismo » multilinguesuismo, multilingualism, multilingumismo, multilingusismo, multilinguistmo
{uml}lusismos." » {uml}lusimos.", {uml}sismos.", {uml}lusmismos.", {uml}lussismos.", {uml}lusistmos."
{uml}usismo." » {uml}usmismo.", {uml}ussismo.", {uml}usistmo."
{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 multilingue) or multilinguismo)(({uml}usismo." OR {uml}lusismos.") or {uml}ismo.")~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"((multiling or multilingue) or multilinguismo)(({uml}usismo.\" OR {uml}lusismos.\") or {uml}ismo.\")*".
• Removing quotes may allow a broader search: ((multiling or multilingue) or multilinguismo)(({uml}usismo. OR {uml}lusismos. ) or {uml}ismo. )*.