Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
kho tang » cao tang
ky trong » ly trong, ke trong, cay trong
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, dua tren
vu sang » vua sang, vu dang, vu san
ma hoi » mai hoi, xa hoi, ma hoa
ve dat » de dat, va dat, ve dao
nuoc » quoc, duoc, ngoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sang ((ky trong) or (kho tang)) ma hoi. hieu ve dat nuoc va hanh di ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sang ((ky trong) OR (kho tang)) ma hoi. hieu ve dat nuoc va hanh di ((cua tre) OR (cua triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sang ((ky trong) or (kho tang)) ma hoi. hieu ve dat nuoc va hanh di ((cua tre) OR (cua triet))*".