Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thanh tai » thanh hai, thanh toan, doanh tai
van thanh » ban thanh, van tuan
hieu van » hieu va, thien van, lieu va
te sach » toc sach
cam luc » cau luc
tai cuu » tai cuc, tai buu, tai cua
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
cuu tre » cua tre, cau tren, cau treo

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 (thuoc sach)) ky dang xa hoi. hieu van ((cam luc) or (cam xuc)) van thanh tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thuoc sach)) ky dang xa hoi. hieu van ((cam luc) OR (cam xuc)) van thanh tai cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thuoc sach)) ky dang xa hoi. hieu van ((cam luc) or (cam xuc)) van thanh tai cuu tre*.