Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
kho tang » cao tang
mai khoi » mai khoa, tai khoa, cac khoi
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
qua cac » cua cac
ky sang » ky nang, ky dang, ky tang
ca cua » co cua
tu sai » tu bai, tu san, tu cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ((ky sang) OR (kho tang)) mai khoi. hieu qua cac xuc ((va danh) OR (va hanh)) ca cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ((ky sang) OR (kho tang)) mai khoi. hieu qua cac xuc ((va danh) OR (va hanh)) ca cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sai ((ky sang) OR (kho tang)) mai khoi. hieu qua cac xuc ((va danh) OR (va hanh)) ca cua triet*.