Perhaps you should try some spelling variations:
cuu tre » cau tren, cau treo
cam duc » cam xuc, cao duc, pham duc
ky tang » ky nang, ky dang, kho tang
cua tre » cua te, cua triet, dua tren
danh di » danh du, xanh di, danh dien
va danh » va dinh, va dan, va hanh
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
ma hoi » mai hoi, ma hoa, me hoi
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky tang ((ma hoi) OR (xa hoi)). lieu va cam duc va danh di ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky tang ((ma hoi) OR (xa hoi)). lieu va cam duc va danh di ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky tang ((ma hoi) OR (xa hoi)). lieu va cam duc va danh di ((cua tre) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: vu sac ky tang ((ma hoi) OR (xa hoi)). lieu va cam duc va danh di ((cua tre) or (cuu tre))*.