Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
tong cong » trong cong, cong cong, dung cong
hoc dieu » hoc thieu, hoc hien
cua tong » cua cong, cua dong, cua nong
tac doan » tan doan, thai doan, cac doanh
tap doan » tap quan

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 hanh - hanh tranh cua tong cong ((tac doan) or (tap doan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dieu hanh - hanh tranh cua tong cong ((tac doan) OR (tap doan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc dieu hanh - hanh tranh cua tong cong ((tac doan) or (tap doan)) cau*.