Perhaps you should try some spelling variations:
hien hanh » dieu hanh
canh manh » lanh manh, canh tranh, cach mang
tong cong » trong cong, cong cong, dung cong
hang cong » dang cong, hang nong, bang cong
tien anh » tieng anh, tien manh, dien anh
manh cua » doanh cua, ban cua
tap doan » tap quan
doan ban » doanh ban, toan ban, doan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien hanh) or (tien anh)) - canh manh cua ((tong cong) or (hang cong)) tap doan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien hanh) OR (tien anh)) - canh manh cua ((tong cong) OR (hang cong)) tap doan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien hanh) or (tien anh)) - canh manh cua ((tong cong) or (hang cong)) tap doan ban*.