Perhaps you should try some spelling variations:
nguoi sach » nguoi san, nuoc sach
cau phuc » cau truc, chau phu, huu phuc
van hanh » van thanh, ban hanh, van anh
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
cau luc » cau truc
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di 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: nguoi sach ky nang x hoi. hieu va ((cau luc) OR (cau phuc)) van hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nguoi sach ky nang x hoi. hieu va ((cau luc) OR (cau phuc)) van hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: nguoi sach ky nang x hoi. hieu va ((cau luc) OR (cau phuc)) van hanh vi cua tre*.