Perhaps you should try some spelling variations:
trinh nhiet » trinh thiet, trinh nghien, trinh viet
trinh hieu » trinh dieu, trinh thiet, trinh thien
nguoi biet » nguoi viet, nguoi chet, nguoi binh
luat danh » luat doanh, luat dan, luat canh
cho nguoi » cua nguoi
hoc tieng » hoc hien
tieng han » tieng anh
qua danh » qua dan, luan danh, quoc danh
biet nha » biet nhat, biet nhe, biet nghi
nha hoc » nha thuoc, khoa hoc, nha nuoc

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 hieu) or (trinh nhiet)) ((qua danh) OR (luat danh)) cho nguoi biet nha hoc tieng han~.
• If you are trying to use Boolean operators, they must be ALL CAPS: giao ((trinh hieu) OR (trinh nhiet)) ((qua danh) OR (luat danh)) cho nguoi biet nha hoc tieng han.
• The words AND, OR and NOT may confuse the search; try adding quotes: "giao ((trinh hieu) or (trinh nhiet)) ((qua danh) OR (luat danh)) cho nguoi biet nha hoc tieng han".
• Adding a wildcard symbol may retrieve word variants: giao ((trinh hieu) or (trinh nhiet)) ((qua danh) OR (luat danh)) cho nguoi biet nha hoc tieng han*.