Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
luan nuoc » luong nuoc, luat duoc, cua nuoc
cua triet » cua viet, su triet, va triet
hieu anh » chieu xanh, hieu nganh, hien hanh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang xa hoi. ((hieu anh) or (hieu manh)) luan nuoc va hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. ((hieu anh) OR (hieu manh)) luan nuoc va hanh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. ((hieu anh) or (hieu manh)) luan nuoc va hanh vi cua triet*.