Perhaps you should try some spelling variations:
chua thiet » chuan thiet, cua thiet, thua thiet
chua trieu » cua triet, cau trieu, chua tri
va thanh » gia thanh, ban thanh, va tinh
va hanh » van hanh, va danh, ban hanh
tang ma » mang may, tang van
hieu ve » hieu va, hieu van
ky tang » ky nang, ky dang, kho tang
sai ky » sac ky
ma hoi » mai hoi, xa hoi, ma hoa
te sai » te tai, te bai, te lai
ve am » va am

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sai ky tang ma hoi. hieu ve am thuc ((va hanh) or (va thanh)) va ((chua trieu) OR (chua thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ky tang ma hoi. hieu ve am thuc ((va hanh) OR (va thanh)) va ((chua trieu) OR (chua thiet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sai ky tang ma hoi. hieu ve am thuc ((va hanh) or (va thanh)) va ((chua trieu) OR (chua thiet))*".