Perhaps you should try some spelling variations:
hanh dao » thanh dat, thanh dam, doanh dao
te sach » toc sach
cam tuc » cam xuc, cam tu, nam thuc
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
van hoi » van hoa, van hoc, van hoe
ky dang » ky nang, ky danh
ky tang » ky nang, kho tang, ky trong
tuc va » thuc va, truc va, tuc xa
va cam » va cham, va cac, va cao

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 ((ky tang) OR (ky dang)) van hoi. hieu va cam tuc va ((hanh dao) or (lanh dao)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky tang) OR (ky dang)) van hoi. hieu va cam tuc va ((hanh dao) OR (lanh dao)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky tang) OR (ky dang)) van hoi. hieu va cam tuc va ((hanh dao) or (lanh dao)) cua tre*".