Perhaps you should try some spelling variations:
thien hien » thien nhien, thien chien, thien hieu
van hanh » van thanh, ban hanh, van anh
su triet » su viet, ve triet
hien cac » thien cac, vien cac, hieu cac
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
su tien » su kien, su hien, tu tieng
va hanh » va thanh, va danh, ban hanh
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
te sac » te sach, te cac, te san

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 lang xa hoi. thien hien cac nuoc ((va hanh) or (van hanh)) van ((su triet) or (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang xa hoi. thien hien cac nuoc ((va hanh) OR (van hanh)) van ((su triet) OR (su tien)).
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. thien hien cac nuoc ((va hanh) or (van hanh)) van ((su triet) or (su tien))*.