Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
ban thanh » ban hanh, ban hang
cua triet » cua viet, su triet, va triet
lai hoa » loai hoc
dai hoa » dai khoa, dai hoc, dai hoi
hieu ve » hieu va, hieu van
ve phan » va phan, ke phan, ve phat
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
tu ban » thu ban, te ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky nang ((lai hoa) OR (dai hoa)). hieu ve phan tu ban thanh dai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky nang ((lai hoa) OR (dai hoa)). hieu ve phan tu ban thanh dai cua triet".
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang ((lai hoa) OR (dai hoa)). hieu ve phan tu ban thanh dai cua triet*.