إدارة = management(N) manage (v) (it depends on شكل الحروف)
منشآت = institutions/enterprises/facilities (N, pl)
تركيب = installation/forming (gerund)
الأعمال = deeds/business (N, pl) (depending on context)
تدخل = intervention (N)/ enter (V; lit meaning) (again, it depends on context and شكل الحروف )
ضمن = within/including
مجال = space/field
الخداع = deception/tricking (in this context it means illusion)
المجمع = Complex (as in residential complex)
rough translation:
Seoul's Bureau of Facilities Management announced the installation of a number of artworks ,which fall within the field of visual illusion, in the commercial complex (mall)