Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
thien van » thi van
ban thanh » ban hanh, ban hang
toan cua » than cua, tan cua, doanh cua
tu sach » thu sach, su sach, tu cach
duc ban » duc tan, duc van, dua ban
lam duc » lam duoc, pham duc, nam duoc
hieu va » lieu va, hieu qua
te sach » toc sach
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: ((tu sach) OR (te sach)) y nang x hoi. ((hieu va) or (thien van)) lam duc ban thanh toan cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) y nang x hoi. ((hieu va) OR (thien van)) lam duc ban thanh toan cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) y nang x hoi. ((hieu va) or (thien van)) lam duc ban thanh toan cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (te sach)) y nang x hoi. ((hieu va) or (thien van)) lam duc ban thanh toan cua tre*.