Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » hanh trinh, hanh trang, lanh tranh
nhung cong » dung cong, thong cong, hang cong
tranh luan » trinh luan, trinh luat, doanh luan
hoc chieu » hoc thieu, ho chieu, hoc hien
cua nhung » va nhung
tan tranh » tan tran, can tranh, lan tranh
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sang - ((hanh tranh) or (canh tranh)) cua nhung cong tan tranh luan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sang - ((hanh tranh) OR (canh tranh)) cua nhung cong tan tranh luan.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - ((hanh tranh) or (canh tranh)) cua nhung cong tan tranh luan*.