Perhaps you should try some spelling variations:
dang thanh » dong thanh, dang hanh, hoang thanh
thuc dang » thuoc dang, thuc dan, thuc dung
nam thuc » nam thuoc, am thuc, nam thu
hai cua » thai cua, dai cua, hoi cua
vai cua » dai cua, lai cua, bai cua
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
hieu ca » hieu cac, hieu cua, hieu va
hieu ha » hieu hoa, hieu va, hieu xa
x hoi » xa hoi, o hoi, x ho

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 nang x hoi. ((hieu ha) or (hieu ca)) nam thuc dang thanh ((vai cua) OR (hai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. ((hieu ha) OR (hieu ca)) nam thuc dang thanh ((vai cua) OR (hai cua)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. ((hieu ha) or (hieu ca)) nam thuc dang thanh ((vai cua) OR (hai cua)) triet*".