Perhaps you should try some spelling variations:
sau viet » su viet, dau viet, sau biet
cham xuc » cam xuc, chat xuc, pham duc
hanh ca » hanh cac, hanh cat, hanh cua
va hanh » van hanh, va thanh, va danh
sach ky » sac ky, sach y, sach ty
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
dai hoi » dai hoc, dai hai, dai moi
mai hoi » mai khoi, lai hoi, mai doi
ca sau » ca san

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky nang ((mai hoi) or (dai hoi)). hieu ve ((cham xuc) or (cham soc)) va hanh ca sau viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang ((mai hoi) OR (dai hoi)). hieu ve ((cham xuc) OR (cham soc)) va hanh ca sau viet.
• Adding a wildcard symbol may retrieve word variants: so sach ky nang ((mai hoi) or (dai hoi)). hieu ve ((cham xuc) or (cham soc)) va hanh ca sau viet*.