Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
thuc dan » thuc hanh, hoc dan, thuc vat
ky sang » ky nang, ky dang, ky tang
sang xa » song xa, lang xa, sang ma
hieu ly » hieu ky, lieu ly, dieu ly
thuc va » thuc vat, thuc day
hang vi » hang va, hanh vi, khang voi
hang di » hang doi, hang dien, hang dich
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky

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 xa hoi. hieu ly nam ((thuc va) or (thuc dan)) ((hang di) or (hang vi)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky sang xa hoi. hieu ly nam ((thuc va) OR (thuc dan)) ((hang di) OR (hang vi)) cua viet.
• Adding a wildcard symbol may retrieve word variants: su sac ky sang xa hoi. hieu ly nam ((thuc va) or (thuc dan)) ((hang di) or (hang vi)) cua viet*.