Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh hai » thanh phan, thanh hoa, thanh san
ban thanh » ban hanh, ban hang
mai khoi » mai khoa, tai khoa, cac khoi
va chat » van chat, va phat, cao chat
hai cua » thai cua, dai cua, hoi cua
dua ban » dia ban, cua ban, qua ban
te sach » toc sach
mai hoi » dai hoi, lai hoi, mai doi
va cham » va tham
y nang » ky nang, ly nang, v nang

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 y nang ((mai hoi) or (mai khoi)). hieu ((va cham) OR (va chat)) dua ban thanh hai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((mai hoi) OR (mai khoi)). hieu ((va cham) OR (va chat)) dua ban thanh hai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((mai hoi) or (mai khoi)). hieu ((va cham) OR (va chat)) dua ban thanh hai cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((mai hoi) or (mai khoi)). hieu ((va cham) OR (va chat)) dua ban thanh hai cua triet*.