Perhaps you should try some spelling variations:
giao tinh » giao trinh, gia tinh, giao thanh
dieu luoc » dien luc, dieu tuoi, bieu quoc
cho nguoi » cua nguoi
tieng han » tieng anh
hieu luc » hieu luat, hieu qua
kinh cho » kinh co, tinh cho, minh cho
ha thuoc » nha thuoc, va thuoc, ha thuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: giao tinh ((dieu luoc) OR (hieu luc)) kinh cho nguoi viet ((ha thuoc) or (nha nuoc)) tieng han~.
• If you are trying to use Boolean operators, they must be ALL CAPS: giao tinh ((dieu luoc) OR (hieu luc)) kinh cho nguoi viet ((ha thuoc) OR (nha nuoc)) tieng han*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "giao tinh ((dieu luoc) OR (hieu luc)) kinh cho nguoi viet ((ha thuoc) or (nha nuoc)) tieng han*".