Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
hien xanh » hien hanh, hien nhanh, chieu xanh
tran tuan » tran xuan, tran quang, tran thanh
dang cong » dung cong
dung cua » dung luan, dung cho
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: hoc hien xanh - thanh ((dung cua) or (tran tuan)) dang cong thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - thanh ((dung cua) OR (tran tuan)) dang cong thanh toan ban*.