Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc chieu » hoc thieu, ho chieu, hoc hien
cua thong » cua thuong, suat thong, cua truong
cua khong » hua khong, cua phuong, cua thuong
cong tinh » cong trinh, cong vinh, long tinh
cua tong » cua cong, cua dong, cua nong
toan ban » van ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh tranh ((((cua thong) OR (cua khong))) OR (cua tong)) cong tinh toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh tranh ((((cua thong) or (cua khong))) or (cua tong)) cong tinh toan ban*.