Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
doc chieu » doc hieu, doi chieu, toc thieu
mang luan » hang luan, bang luan, mong luan
tang luan » dung luan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc chieu xanh - hanh ((mang luan) or (tang luan)) phuong cong thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc chieu xanh - hanh ((mang luan) OR (tang luan)) phuong cong thanh toan ban.
• Adding a wildcard symbol may retrieve word variants: doc chieu xanh - hanh ((mang luan) or (tang luan)) phuong cong thanh toan ban*.