Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh dai » thanh hai, thanh tai, thanh dat
ban thanh » ban hanh, ban hang
ke phan » kenh phan, ke thang
duc ban » duc tan, duc van, dua ban
ve phan » va phan, ve phat, vi phan
dai hoa » dai khoa, dai hoc, dai hoi
lai hoa » loai hoc
sac ky » cac ky, sai ky
va sac » va cac, va suc, va san

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

• Performing a fuzzy search may retrieve terms with similar spellings: va sac ky nang ((lai hoa) OR (dai hoa)). hieu ((ve phan) or (ke phan)) duc ban thanh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: va sac ky nang ((lai hoa) OR (dai hoa)). hieu ((ve phan) OR (ke phan)) duc ban thanh dai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "va sac ky nang ((lai hoa) OR (dai hoa)). hieu ((ve phan) or (ke phan)) duc ban thanh dai cua triet".
• Adding a wildcard symbol may retrieve word variants: va sac ky nang ((lai hoa) OR (dai hoa)). hieu ((ve phan) or (ke phan)) duc ban thanh dai cua triet*.