Perhaps you should try some spelling variations:
nhung doanh » nhung danh, dung doanh, nhung don
chieu tinh » trieu tinh, lieu tinh, kieu tinh
khong cong » thong cong, khong cang, chong cong
nguyen tap » nguyen tac, nguyen tat, nguyen tai
nguyen tan » nguyen tuan, nguyen van, nguyen can
chau tinh » cuu tinh, ha tinh, cua tinh
doanh cua » doanh luan
cua khong » hua khong, cua phuong, cua thuong
cong van » cong vang, cong san, song van

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 tinh) or (chau tinh)) - nhung doanh cua khong cong van ((nguyen tap) OR (nguyen tan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (chau tinh)) - nhung doanh cua khong cong van ((nguyen tap) OR (nguyen tan)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu tinh) or (chau tinh)) - nhung doanh cua khong cong van ((nguyen tap) OR (nguyen tan))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (chau tinh)) - nhung doanh cua khong cong van ((nguyen tap) OR (nguyen tan))*.