Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thanh vien » nhan vien, thanh van
hieu viec » nhieu viec, hieu ve, sieu viet
van thanh » ban thanh, van tuan
vien cua » viec cua, dien cua, tien cua
cua viet » ca viet, hoa viet, cua vat
y nang » ly nang, v nang, may nang
cac lo » cac lop, cac bo, cac ho
cac co » cac cong
x hoi » xa hoi, o hoi, x ho

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((y nang) OR (ky nang)) x hoi. hieu viec ((cac lo) OR (cac co)) van thanh vien cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ((y nang) OR (ky nang)) x hoi. hieu viec ((cac lo) or (cac co)) van thanh vien cua viet~".
• Adding a wildcard symbol may retrieve word variants: thuat sach ((y nang) OR (ky nang)) x hoi. hieu viec ((cac lo) or (cac co)) van thanh vien cua viet*.