Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
hanh trinh » canh tranh, hanh chinh
cho truong » cac truong, thi truong, bo truong
hieu lang » chieu sang, hieu quang, nhieu tang
trinh cho » trinh chao, trinh co, trinh chat
doanh bac » doanh bat, doanh ban, danh bac
doanh van » doan van, doanh va, doanh ban
doc hieu » toc thieu, hoc thieu, hoc hien
cong tac » cong ty

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 lang - hanh trinh cho truong cong tac ((doanh bac) or (doanh van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu lang - hanh trinh cho truong cong tac ((doanh bac) OR (doanh van)).
• Adding a wildcard symbol may retrieve word variants: doc hieu lang - hanh trinh cho truong cong tac ((doanh bac) or (doanh van))*.