Perhaps you should try some spelling variations:
trinh lieu » trinh lich, binh lieu, tri lieu
trinh dien » tinh dien, trinh tin
trinh dieu » tinh dieu, trinh dinh, trinh di
hoc tieng » hoc hien
tieng han » tieng anh
gia manh » gia anh, gia hanh, gia lanh
manh cua » doanh cua, ban cua
viet bao » viec bao, viet lao, viet bac
bao hoc » bai hoc, bao goc, bac hoc

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: giao ((((trinh lieu) OR (trinh dien))) or (trinh dieu)) gia manh cua nguoi viet bao hoc tieng han~.
• If you are trying to use Boolean operators, they must be ALL CAPS: giao ((((trinh lieu) OR (trinh dien))) OR (trinh dieu)) gia manh cua nguoi viet bao hoc tieng han*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "giao ((((trinh lieu) OR (trinh dien))) or (trinh dieu)) gia manh cua nguoi viet bao hoc tieng han*".