Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
xanh tri » xanh tai, thanh tri, dinh tri
hieu ve » hieu va, hieu van
tri cuu » tri cua, tra cuu, trinh cuu
va xanh » va danh, va hanh, va anh
thuc va » thuc vat, thuc dan, thuc day
ve pham » vi pham, v pham, ve phan
cuu tre » cua tre, cau tren, cau treo
mai hoi » mai khoi, dai hoi, lai hoi
ky tang » ky nang, ky dang, kho tang
ban ky » van ky, dan ky
ma hoi » xa hoi, ma hoa, me hoi
vu ban » tu ban, va ban

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: vu ban ky tang ((ma hoi) OR (mai hoi)). hieu ve pham thuc va xanh tri cuu tre~.
• Adding a wildcard symbol may retrieve word variants: vu ban ky tang ((ma hoi) or (mai hoi)). hieu ve pham thuc va xanh tri cuu tre*.