Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
su triet » su viet, su tien, ve triet
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cau duc » cao duc, cau luc, chu duc
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
ve cau » ke cau, va cau, ve cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang xa hoi. hieu ve cau duc va danh di ((cua tre) or (((cua viet) or (su triet))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang xa hoi. hieu ve cau duc va danh di ((cua tre) OR (((cua viet) OR (su triet)))).
• Adding a wildcard symbol may retrieve word variants: te sac ky nang xa hoi. hieu ve cau duc va danh di ((cua tre) or (((cua viet) or (su triet))))*.