Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
thu sach » tu sach, thuat sach, thuoc sach
viec cac » vien cac, viec cua, viec lam
van danh » van doanh, van anh, van hanh
danh vai » danh sai, danh va, doanh van
cau treo » cau theo, cau tren, cau triet
cuu tre » cua tre, cau tren
y nang » ly nang, v nang, may nang
cac lo » cac lop, cac co, cac bo
lo van » le van, vo van, so van

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((y nang) OR (ky nang)) xa hoi. hieu viec cac lo van danh vai ((cuu tre) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((y nang) OR (ky nang)) xa hoi. hieu viec cac lo van danh vai ((cuu tre) OR (cau treo))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((y nang) OR (ky nang)) xa hoi. hieu viec cac lo van danh vai ((cuu tre) or (cau treo))*".