Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sang tai » hang tai, sang tao, tang tai
tai khoi » tai khoa, mai khoi, tao khoi
hieu van » hieu va, thien van, lieu va
nam duoc » nam thuoc, da duoc, dat duoc
danh lai » danh sai, gianh lai, dinh lam
va danh » va dinh, va dan, va hanh
ky sang » ky nang, ky dang, ky tang
cua tre » cua te, cuu tre, dua tren
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky sang tai khoi. hieu van ((nam duoc) OR (cam xuc)) va danh lai ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky sang tai khoi. hieu van ((nam duoc) or (cam xuc)) va danh lai ((cua tre) OR (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: te sac ky sang tai khoi. hieu van ((nam duoc) or (cam xuc)) va danh lai ((cua tre) OR (cua triet))*.