Erro: -420 Database Error

Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation 'like'

Statement:

select
turmas.*,
products.partnumber,
day(turmas.datestart) as daystart,
month(turmas.datestart) as startmonth,
year(turmas.datestart) as year
from courses as turmas
inner join courses as modulos on modulos.id=turmas.parentid
inner join courses on courses.id=modulos.parentid
inner join products on products.courseid=courses.id
where
(
turmas.`title` like '%Lideran��a%' or
turmas.`description` like '%Lideran��a%' or
products.`partname` like '%Lideran��a%' or
products.`partnumber` like '%Lideran��a%'
)
and courses.companyid=1 and date(turmas.datestart)>date(now())
and date(turmas.datestart)< adddate(now(),INTERVAL 2 YEAR)
order by turmas.creationdate desc LIMIT 0, 9