Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
cau theo » cau thi, cau tao
van hanh » van thanh, ban hanh, van anh
cau treo » cau tren, cau triet, cau trieu
van danh » van doanh, van anh, van manh
viec cac » vien cac, viec cua, viec lam
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
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: su sach ky nang xa hoi. hieu viec cac lo ((van danh) OR (van hanh)) vai ((cau treo) or (cau theo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu viec cac lo ((van danh) OR (van hanh)) vai ((cau treo) OR (cau theo))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu viec cac lo ((van danh) OR (van hanh)) vai ((cau treo) or (cau theo))*".