Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
hieu van » hieu va, thien van, lieu va
thuoc va » thuc va, thuoc ma, thuong va
hanh hai » thanh hai, nhanh hai, hang hai
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
thi van » thi lan, thi hanh, thi nang
va hanh » van hanh, va thanh, va danh
hai cua » thai cua, dai cua, hoi cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ky) or (cac ky)) nang xa hoi. ((hieu van) or (thi van)) nam thuoc va hanh hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (cac ky)) nang xa hoi. ((hieu van) OR (thi van)) nam thuoc va hanh hai cua te.
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (cac ky)) nang xa hoi. ((hieu van) or (thi van)) nam thuoc va hanh hai cua te*.