Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
ban thanh » ban hanh, ban hang
toan cua » than cua, tan cua, doanh cua
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
cac duc » cac du, cao duc, cac dac
duc ban » duc tan, duc van, dua ban
cua tre » cua te, cuu tre, cua triet

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 ((ty xang) or (ky nang)) xa hoi. hieu va cac duc ban thanh toan cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty xang) OR (ky nang)) xa hoi. hieu va cac duc ban thanh toan cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ((ty xang) or (ky nang)) xa hoi. hieu va cac duc ban thanh toan cua tre*.