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

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh ((chinh thuc) or (trien thuat)) nhung cong anh ((tuan ban) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((chinh thuc) OR (trien thuat)) nhung cong anh ((tuan ban) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((chinh thuc) or (trien thuat)) nhung cong anh ((tuan ban) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((chinh thuc) or (trien thuat)) nhung cong anh ((tuan ban) OR (toan ban))*.