Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
doanh phan » doanh nhan, doanh thanh, doanh luan
doc chieu » doc hieu, doi chieu, toc thieu
doan phan » toan phan, dan phan, doanh nhan
dang cong » dung cong
quan cau » quang cao, toan cau, quan cua
quan ha » quan he

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc chieu tinh - canh ((doanh phan) or (doan phan)) dang cong trinh ((quan cau) OR (quan ha))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc chieu tinh - canh ((doanh phan) OR (doan phan)) dang cong trinh ((quan cau) OR (quan ha)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc chieu tinh - canh ((doanh phan) or (doan phan)) dang cong trinh ((quan cau) OR (quan ha))".
• Adding a wildcard symbol may retrieve word variants: doc chieu tinh - canh ((doanh phan) or (doan phan)) dang cong trinh ((quan cau) OR (quan ha))*.