Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
cong doan » cong dan, cong hoan, dong doanh
doan phan » doanh phan, toan phan, dan phan
hoc dieu » hoc thieu
phan dau » phan tu, hang dau
va lang » hoa lang
va nang » van nang, da nang, cam nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc dieu) or (hoc hien)) quang - hanh doanh ((va lang) OR (va nang)) cong doan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dieu) OR (hoc hien)) quang - hanh doanh ((va lang) OR (va nang)) cong doan phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc dieu) or (hoc hien)) quang - hanh doanh ((va lang) OR (va nang)) cong doan phan dau".
• Adding a wildcard symbol may retrieve word variants: ((hoc dieu) or (hoc hien)) quang - hanh doanh ((va lang) OR (va nang)) cong doan phan dau*.