Perhaps you should try some spelling variations:
hai chau » lai chau, ha chau, hat chau
chat xuc » chat huu, cam xuc, chao xu
cac xuc » cam xuc, cac nuoc, cac cuoc
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
hai cau » hai chu, hai hau, hoi cau
su sach » so sach, vu sach
nang o » nang co, nang ho, nang ro
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang o hoi. hieu qua ((cac xuc) or (chat xuc)) va hanh ((hai cau) OR (hai chau)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang o hoi. hieu qua ((cac xuc) OR (chat xuc)) va hanh ((hai cau) OR (hai chau)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang o hoi. hieu qua ((cac xuc) or (chat xuc)) va hanh ((hai cau) OR (hai chau)) triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang o hoi. hieu qua ((cac xuc) or (chat xuc)) va hanh ((hai cau) OR (hai chau)) triet*.