Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban banh » ban hanh, ban danh, ban thanh
cong hai » cong thai, cong ha, hoang hai
ban anh » ban hanh, ban danh, bang anh
te sach » toc sach
cam cuc » cam xuc, cham cuu, pham cuc
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
di cua » dai cua, doi cua, de cua
va cam » va cham, va cac, va cao

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 cuc ((ban anh) OR (ban banh)) di 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 cuc ((ban anh) OR (ban banh)) di 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 cuc ((ban anh) OR (ban banh)) di cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ((son hai) or (cong hai)). hieu va cam cuc ((ban anh) OR (ban banh)) di cua triet*.