Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
thanh hai » thanh phan, thanh hoa, thanh san
hieu ve » hieu va, hieu van
cam cuc » cam xuc, cham cuu, pham cuc
cuc ban » cua ban, cac ban, cuu ban
su sach » so sach, vu sach
hai cua » thai cua, dai cua, hoi cua
tu sach » thu sach, te sach, tu cach
co hoi » co hoc
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (su sach)) ky nang ((co hoi) OR (co loi)). hieu ve cam cuc ban thanh hai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang ((co hoi) OR (co loi)). hieu ve cam cuc ban thanh hai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ky nang ((co hoi) OR (co loi)). hieu ve cam cuc ban thanh hai cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang ((co hoi) OR (co loi)). hieu ve cam cuc ban thanh hai cua triet*.