Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cong hai » cong thai, cong ha, hoang hai
doi cua » dai cua, hoi cua
anh doi » anh noi, anh doc, thanh doi
ban anh » ban hanh, ban banh, ban danh
cuc ban » cua ban, cac ban, cuu ban
te sach » toc sach
sach ky » sac ky, sach y, sach ty
va cao » va cac, va co, va dao
va cam » va cham, va cac, va cai

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

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