Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
hanh lai » hanh lam, hanh tai, thanh lap
su triet » su viet, su tien, ve triet
cao hoi » cau hoi, cao hoc, tao hoi
xuc van » duc van, luc van, vuc van
co hoi » co hoc, co loi

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((sach 2) OR (sach y)) nang ((cao hoi) or (co hoi)). hieu van cham xuc van hanh lai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach 2) OR (sach y)) nang ((cao hoi) OR (co hoi)). hieu van cham xuc van hanh lai su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach 2) OR (sach y)) nang ((cao hoi) or (co hoi)). hieu van cham xuc van hanh lai su triet".
• Adding a wildcard symbol may retrieve word variants: toc ((sach 2) OR (sach y)) nang ((cao hoi) or (co hoi)). hieu van cham xuc van hanh lai su triet*.