Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
thuc dan » thuc hanh, hoc dan, thuc vat
tang ma » tang van
hanh di » hanh vi, hanh de, hang di
hieu le » hieu ve, hieu he, hieu ly
thuc va » thuc vat, thuc day
di cua » dai cua, doi cua, de cua
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
le nam » ly nam, he nam, le na

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