Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
nhung huong » nhung phuong, nhung tuong, nhung cong
hieu sang » chieu sang, hieu lang, hieu quang
doc hieu » toc thieu, hoc thieu, hoc hien
doanh va » doan va, doanh tai, doanh cua
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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 sang - chinh doanh va nhung huong dan ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sang - chinh doanh va nhung huong dan ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: doc hieu sang - chinh doanh va nhung huong dan ((toan cau) or (toan tap))*.