Perhaps you should try some spelling variations:
trinh thiet » trinh viet, trinh thi
trinh hieu » trinh dieu, trinh nhiet, trinh thien
cho nguoi » cua nguoi
tieng han » tieng anh
qua danh » qua dan, luan danh, luat danh
nhan hoc » nha hoc, nhan hoa, than hoc
nma hoc » nha 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 hieu) or (trinh thiet)) qua danh cho nguoi viet ((nma hoc) or (nhan hoc)) tieng han~.
• If you are trying to use Boolean operators, they must be ALL CAPS: giao ((trinh hieu) OR (trinh thiet)) qua danh cho nguoi viet ((nma hoc) OR (nhan hoc)) tieng han.
• Adding a wildcard symbol may retrieve word variants: giao ((trinh hieu) or (trinh thiet)) qua danh cho nguoi viet ((nma hoc) or (nhan hoc)) tieng han*.