Perhaps you should try some spelling variations:
ngang thanh » nang thanh, ngan thanh, nhanh thanh
nganh thanh » nhanh thanh, danh thanh, nhanh thang
hieu quang » thieu quang, hieu quan, hieu qua
canh doanh » hanh doanh, chinh doanh, doanh doanh
nhung cong » dung cong, thong cong, hang cong
doanh cua » doanh luan
cua nhung » va nhung
doc hieu » toc thieu, hoc thieu, hoc hien

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu quang - canh doanh cua nhung cong ((ngang thanh) or (nganh thanh)) cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu quang - canh doanh cua nhung cong ((ngang thanh) OR (nganh thanh)) cac.
• Adding a wildcard symbol may retrieve word variants: doc hieu quang - canh doanh cua nhung cong ((ngang thanh) or (nganh thanh)) cac*.