Perhaps you should try some spelling variations:
vien nguoi » dien nguoi, gian nguoi, vien gioi
thong minh » thong tin, hoang minh
nguoi cong » nguoi muong, nguoi thong, nguoi nung
trinh minh » trinh kinh, trinh dinh, trinh sinh
sach thue » sach thu, sach thieu, sach tham
ban thong » ban trong, ban tuong, ban tong
gioi ban » gioi van, gioi bon, gioi can
nha vien » nhan vien, nha viec, nhan dien
so sach » so sanh, bo sach, co sach
thue ke » thie ke, thua ke, thuc ke
ke gioi » ke giai, ve gioi, ke nguoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so sach thue ke gioi ban thong minh ) or ( so sach nha vien nguoi cong trinh minh ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sach thue ke gioi ban thong minh ) OR ( so sach nha vien nguoi cong trinh minh )).
• Adding a wildcard symbol may retrieve word variants: (( so sach thue ke gioi ban thong minh ) or ( so sach nha vien nguoi cong trinh minh ))*.