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
quang cao » nang cao, quang nam
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 ((quang cao) 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 ((quang cao) OR (quan ha)).
• Adding a wildcard symbol may retrieve word variants: doc chieu tinh - canh ((doanh phan) or (doan phan)) dang cong trinh ((quang cao) or (quan ha))*.