Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, le thanh
san cua » sang cua, ban cua, dan cua
va tinh » may tinh
cam tuc » cam xuc, cam tu, nam thuc
van cam » van nam, van lam, van cau
thi van » thi lan, thi hanh, thi nang
ty nang » ty xang, ty hang, ly nang
cua tre » cua te, cuu tre, cua triet
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 ((ty nang) or (ky nang)) x hoi. thi van cam tuc ((va thanh) OR (va tinh)) san cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ty nang) OR (ky nang)) x hoi. thi van cam tuc ((va thanh) OR (va tinh)) san cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((ty nang) or (ky nang)) x hoi. thi van cam tuc ((va thanh) OR (va tinh)) san cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ((ty nang) or (ky nang)) x hoi. thi van cam tuc ((va thanh) OR (va tinh)) san cua tre*.