Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
ban thanh » ban hanh, ban hang
va thanh » va tinh, le thanh
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
vu hai » su hai, vu ha
hai ky » thai ky, hoi ky, hai ly
ma hoi » mai hoi, xa hoi, ma hoa
ve nam » he nam, va nam, le nam
vi cua » vai cua, di cua
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 hai ky nang ma hoi. hieu ve nam thuoc ((((va thanh) OR (ban thanh))) or (gia thanh)) vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu hai ky nang ma hoi. hieu ve nam thuoc ((((va thanh) OR (ban thanh))) OR (gia thanh)) vi cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu hai ky nang ma hoi. hieu ve nam thuoc ((((va thanh) OR (ban thanh))) or (gia thanh)) vi cua tu*".