Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
ban hanh » ban hang
thu sach » thuat sach, thuoc sach, thu hoach
nuoc ban » nuoc san, quoc ban, buoc ban
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
tu sach » su sach, tu cach, vu sach
lai cua » dai cua, hai cua, lai chau
hieu va » lieu va, hieu qua
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
te sach » toc sach
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: ((((tu sach) or (te sach))) or (thu sach)) ky tang xa hoi. hieu va cac nuoc ban hanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sach) OR (te sach))) OR (thu sach)) ky tang xa hoi. hieu va cac nuoc ban hanh lai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((((tu sach) or (te sach))) or (thu sach)) ky tang xa hoi. hieu va cac nuoc ban hanh lai cua tre*.