Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh chat » tinh chat, trinh luat, trinh han
chat trong » nhat trong, thuat trong, chat luong
hieu sang » chieu sang, hieu lang, hieu quang
doanh bao » doanh bat, doanh ban, doanh bac
doc hieu » toc thieu, hoc thieu, hoc hien
cong tac » cong ty
danh bat » doanh bat, anh bai, dinh ba

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 - hanh trinh chat trong cong tac ((doanh bao) or (danh bat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sang - hanh trinh chat trong cong tac ((doanh bao) OR (danh bat)).
• Adding a wildcard symbol may retrieve word variants: doc hieu sang - hanh trinh chat trong cong tac ((doanh bao) or (danh bat))*.