Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
va thanh » ban thanh, va tinh, le thanh
nang ma » tang ma, sang ma, nang cao
hieu he » hieu ve, hiem he, hieu le
vu san » va san, vu ban
vi cua » vai cua, di cua
he nam » ha nam, nghe nam
vu dai » vi dai, va dai, vu hai
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu san) or (vu dai)) ky nang ma hoa. hieu he nam thuoc ((va thanh) or (gia thanh)) vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu san) OR (vu dai)) ky nang ma hoa. hieu he nam thuoc ((va thanh) OR (gia thanh)) vi cua tu.
• Adding a wildcard symbol may retrieve word variants: ((vu san) or (vu dai)) ky nang ma hoa. hieu he nam thuoc ((va thanh) or (gia thanh)) vi cua tu*.