Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban hanh » ban hang
van tham » van thanh, van tuan, van chat
tang mai » tang ma, tang tai, lang mai
luc ban » duc ban, cuc ban, luc bat
va tham » va cham, va thanh, va thuat
mai hoi » mai khoi, dai hoi, lai hoi
ky tang » ky nang, ky dang, kho tang
tu san » thu san, tu ban, tu can
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu bac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) or (tu san)) ky tang mai hoi. hieu ((va tham) or (van tham)) luc ban hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky tang mai hoi. hieu ((va tham) OR (van tham)) luc ban hanh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu san)) ky tang mai hoi. hieu ((va tham) or (van tham)) luc ban hanh vi cua triet*.