Perhaps you should try some spelling variations:
thuoc sach » nuoc sach, thuat sach, thuoc sinh
cua triet » cua viet, su triet, va triet
nam thuc » nam thuoc, am thuc, nam thu
hoc sach » hoc sinh, hoc cac, hoc anh
xanh di » danh di, vanh dai, xanh tai
va xanh » va danh, va hanh, va anh
thuc va » thuc vat, thuc dan, thuc day
cuu tre » cua tre, cau tren, cau treo
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
v nang » va nang, vu nang, van nang
va nam » van nam, ha nam, va nay

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sach) or (hoc sach)) v nang xa hoi. hieu va nam thuc va xanh di ((cua triet) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (hoc sach)) v nang xa hoi. hieu va nam thuc va xanh di ((cua triet) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) or (hoc sach)) v nang xa hoi. hieu va nam thuc va xanh di ((cua triet) or (cuu tre))*.