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

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