Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
hanh tranh » canh tranh, hanh trinh, hanh trang
chieu sang » chieu sach, chieu xanh, hieu lang
trung cong » trong cong, trung uong, trang cong
thanh tran » thanh trang, thanh toan, thanh tra
hieu xanh » chieu xanh, hieu manh, hieu nganh
tranh cua » doanh cua, manh cua
tran tap » toan tap, tran tan, tran tuan

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 xanh) or (chieu sang)) - hanh tranh cua ((trung cong) or (truong cong)) thanh tran tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (chieu sang)) - hanh tranh cua ((trung cong) OR (truong cong)) thanh tran tap.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (chieu sang)) - hanh tranh cua ((trung cong) or (truong cong)) thanh tran tap*.