Perhaps you should try some spelling variations:
thien van » thi van
lam truoc » lam thuoc, nam truoc, lam truong
thu sach » tu sach, thuat sach, thuoc sach
truoc va » truc va, thuoc va, truong va
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
va tinh » may tinh
tinh va » tich va, trinh van, trinh vat
cua tre » cua te, cuu tre, cua triet
va cua » va chua, via cua, ca cua
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: thu sach ky nang x hoi. ((hieu va) or (thien van)) lam truoc va tinh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang x hoi. ((hieu va) OR (thien van)) lam truoc va tinh va cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang x hoi. ((hieu va) or (thien van)) lam truoc va tinh va cua tre*.