Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
cam thuc » am thuc, nam thuc, cam thu
va thanh » gia thanh, ban thanh, va tinh
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cua triet, dua tren
te sach » toc sach
so sach » so sanh, bo sach, co sach
cuu tre » cau tren, cau treo
va cam » va cham, va cac, va cao
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: ((te sach) or (so sach)) ky nang x hoi. lieu va cam thuc va thanh van ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (so sach)) ky nang x hoi. lieu va cam thuc va thanh van ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (so sach)) ky nang x hoi. lieu va cam thuc va thanh van ((cua tre) or (cuu tre))*.