Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
tham thuc » nham thuc, pham thuc, tam thuc
va thanh » gia thanh, va tinh, le thanh
cua viet » ca viet, hoa viet, cua vat
nang ma » tang ma, sang ma, nang cao
va tham » van tham, va cham, va thuat
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang ma hoi. lieu va tham thuc ((va thanh) or (ban thanh)) va ((cua viet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang ma hoi. lieu va tham thuc ((va thanh) OR (ban thanh)) va ((cua viet) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: su sac ky nang ma hoi. lieu va tham thuc ((va thanh) or (ban thanh)) va ((cua viet) or (cua te))*.