Perhaps you should try some spelling variations:
nguoi cong » nguoi muong, nguoi thong, nguoi nung
trinh sinh » trinh kinh, tinh sinh, trinh dinh
cong thong » cong thuong, cong trong, dong thong
thong minh » thong tin, hoang minh
sach thuc » cach thuc, sach thu, sach thue
le nguoi » ly nguoi, lam nguoi, den nguoi
ke nguoi » ky nguoi, me nguoi, khoe nguoi
tu sach » thu sach, su sach, te sach
thuc ke » thuc te, thuc ve, chuc ke
xay le » tay le, xoay len

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: (( thu hoach xay le nguoi cong trinh sinh ) OR ( tu sach thuc ke nguoi cong thong minh ))~.
• Adding a wildcard symbol may retrieve word variants: (( thu hoach xay le nguoi cong trinh sinh ) or ( tu sach thuc ke nguoi cong thong minh ))*.