Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tung » thanh tung, manh tung, hanh dung
dang cong » dung cong
cong tinh » cong trinh, cong vinh, long tinh
hoc hieu » hoc thieu, hoc hien, doc hieu
cua dang » cua cong, cua ban
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - ((hanh tung) or (canh tranh)) cua dang cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - ((hanh tung) OR (canh tranh)) cua dang cong tinh toan ban*.