Perhaps you should try some spelling variations:
xanh hanh » danh thanh, ban hanh, van hanh
thuc xanh » thuc hanh, thuc thanh, thuc dan
cam thuc » am thuc, nam thuc, cam thu
su sach » so sach, vu sach
nang co » nang cao, nang doc, nang noi
hieu va » lieu va, hieu qua
hanh de » hanh ve, hanh kem
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
co hoi » co hoc, co loi
va cam » va cham, va cac, va cao
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (vu bach)) y nang co hoi. hieu va cam thuc xanh hanh de cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu bach)) y nang co hoi. hieu va cam thuc xanh hanh de cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu bach)) y nang co hoi. hieu va cam thuc xanh hanh de cua tre*.