Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
ban hanh » ban hang
hanh tai » thanh tai, hang tai, han tai
hieu ve » hieu va, hieu van
cam cuu » cham cuu, cap cuu
cuu ban » cuu van, cua ban, cuu san
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach y nang x hoi. ((hieu ve) or (lieu va)) cam cuu ban hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y nang x hoi. ((hieu ve) OR (lieu va)) cam cuu ban hanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: thuat sach y nang x hoi. ((hieu ve) or (lieu va)) cam cuu ban hanh tai cua tre*.