Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
vat thanh » dat thanh, gat thanh, tat thanh
vat hanh » van hanh, va hanh, nhat hanh
cua tuc » cua duc, cua tu, cua thuoc
nang ma » tang ma, sang ma, nang cao
hieu le » hieu ve, hieu he, hieu ly
le nam » ly nam, he nam, le na
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu
vu sac » vu sach, vu san, va sac

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky nang ma hoi. hieu le nam thuoc ((vat hanh) OR (vat thanh)) vi ((cua te) or (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang ma hoi. hieu le nam thuoc ((vat hanh) OR (vat thanh)) vi ((cua te) OR (cua tuc)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky nang ma hoi. hieu le nam thuoc ((vat hanh) OR (vat thanh)) vi ((cua te) or (cua tuc))".
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang ma hoi. hieu le nam thuoc ((vat hanh) OR (vat thanh)) vi ((cua te) or (cua tuc))*.