Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
ve nham » ve nha, ve cham
cua tre » cua te, cuu tre, cua triet
ky sang » ky nang, ky dang, ky tang
me hoi » le hoi
sac ky » cac ky, sai ky
ma hoi » mai hoi, ma hoa, va hoi
va dan » ca dan, va dao, va dau
dan vi » doan vi, don vi, dan va
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu san

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: tu sac ky sang ((((ma hoi) OR (me hoi))) OR (xa hoi)). hieu ve nham thuc va dan vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang ((((ma hoi) or (me hoi))) or (xa hoi)). hieu ve nham thuc va dan vi cua tre*.