Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
nam thuc » nam thuoc, am thuc, nam thu
hieu ve » hieu va, hieu van
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
tieu le » trieu le, tien len, trieu ly
hieu le » hieu he, hieu ly, hieu luc
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
di cua » dai cua, doi cua, de cua
su sac » su sach, su cac, su xac

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 sang ma hoi. ((((hieu le) OR (tieu le))) or (hieu ve)) nam thuc va hanh di cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky sang ma hoi. ((((hieu le) OR (tieu le))) OR (hieu ve)) nam thuc va hanh di cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky sang ma hoi. ((((hieu le) OR (tieu le))) or (hieu ve)) nam thuc va hanh di cua viet*".