Perhaps you should try some spelling variations:
doanh luan » doanh nhan
tranh luan » trinh luan, trinh luat, tang luan
chau tinh » cuu tinh, ha tinh, cua tinh
nang cong » nang song, dang cong, bang cong
cong tinh » cong trinh, cong vinh, long tinh
chu tinh » chua tinh, cuu tinh, chu tich
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao ((chu tinh) or (chau tinh)) - canh ((tranh luan) OR (doanh luan)) nang cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chu tinh) OR (chau tinh)) - canh ((tranh luan) OR (doanh luan)) nang cong tinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((chu tinh) or (chau tinh)) - canh ((tranh luan) OR (doanh luan)) nang cong tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: chao ((chu tinh) or (chau tinh)) - canh ((tranh luan) OR (doanh luan)) nang cong tinh toan cau*.