Perhaps you should try some spelling variations:
thien van » thi van
hanh vai » hanh vi, hanh va, hanh tai
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
truc va » thuc va, thuc vat, trung va
ba truc » cau truc, ba trung, dai truc
tu sach » thu sach, tu cach, vu sach
su sach » so sach, vu sach
te sach » toc sach
cua tre » cua te, cuu tre, cua triet
van ba » van ban, van bao, van bac
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))) or (su sach)) ky nang x hoi. thien van ba truc va hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sach) OR (te sach))) OR (su sach)) ky nang x hoi. thien van ba truc va hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((((tu sach) or (te sach))) or (su sach)) ky nang x hoi. thien van ba truc va hanh vai cua tre*.