Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach dao » lanh dao
dao nang » cao nang, da nang, dai nang
cam truc » cau truc, lam truoc, nam truoc
nam truc » nam truoc, nam thuc, nam trung
van hanh » van thanh, ban hanh, van anh
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
vai cua » dai cua, hai cua, lai cua
ma hoi » mai hoi, xa hoi, ma hoa

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 dao nang ma hoi. hieu qua ((cam truc) or (nam truc)) van hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach dao nang ma hoi. hieu qua ((cam truc) OR (nam truc)) van hanh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach dao nang ma hoi. hieu qua ((cam truc) or (nam truc)) van hanh vai cua triet*.