Perhaps you should try some spelling variations:
trien thuat » thien thuat, trien hoat, chien thuat
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
chinh thuc » chinh phuc, hinh thuc, trinh thuc
nhung cong » dung cong, thong cong, hang cong
cong anh » cong danh, dong anh, hong anh
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - hanh ((chinh thuc) or (trien thuat)) nhung cong anh tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh ((chinh thuc) OR (trien thuat)) nhung cong anh tuan ban.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh ((chinh thuc) or (trien thuat)) nhung cong anh tuan ban*.