Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
van thanh » ban thanh, van tuan
toc sach » hoc sach, doc sach, thuoc sach
hieu van » hieu va, thien van, lieu va
phan cua » nhan cua, than cua, phat cua
sach ky » sac ky, sach y, sach ty
cam luc » cau luc
cua tre » cua te, cuu tre, cua triet

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky nang ((xa hoi) or (x ho)). hieu van ((cam luc) or (cam xuc)) van thanh phan cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang ((xa hoi) OR (x ho)). hieu van ((cam luc) OR (cam xuc)) van thanh phan cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang ((xa hoi) or (x ho)). hieu van ((cam luc) or (cam xuc)) van thanh phan cua tre*.