Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
truc ban » thuc ban, truc dan, truc van
qua cac » cua cac
su sach » so sach, vu sach
qua cam » qua cham, qua ca, qua cai
vi cua » vai cua, di cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky nang) OR (ki nang)) xa hoi. hieu ((qua cam) OR (qua cac)) truc ban thanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ky nang) or (ki nang)) xa hoi. hieu ((qua cam) OR (qua cac)) truc ban thanh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: su sach ((ky nang) or (ki nang)) xa hoi. hieu ((qua cam) OR (qua cac)) truc ban thanh vi cua triet*.