Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
hieu viec » nhieu viec, hieu ve, sieu viet
van doanh » toan doanh, van dong, van thanh
thu sach » tu sach, thuat sach, thuoc sach
viec cac » vien cac, viec cua, viec lam
cau treo » cau theo, cau tren, cau triet
cuu tre » cua tre, cau tren
v nang » va nang, vu nang, van nang
y nang » ky nang, ly nang, may nang
lo van » le van, vo van, so van
cac lo » cac lop, cac co, cac bo

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