Perhaps you should try some spelling variations:
trong doanh » trong nganh
hieu quang » thieu quang, hieu quan, hieu qua
hanh trong » hanh trang, anh trong, hinh trong
doanh tong » doanh trong, doanh thuong, anh tong
cong tinh » cong vinh, long tinh, cong thanh
toan cau » toan cao, toan ban, toan tap
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu quang - hanh trong doanh tong ((cong tinh) or (cong trinh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu quang - hanh trong doanh tong ((cong tinh) OR (cong trinh)) toan cau*.