Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
hang luong » nang luong, hang thuong, hoang vuong
luong manh » duong manh, luong thanh, duong minh
30 trieu » 25 trieu
dung cua » dung luan, dung cho
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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: 30 trieu tinh - hanh ((dung cua) OR (trung tuan)) hang luong manh ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "30 trieu tinh - hanh ((dung cua) or (trung tuan)) hang luong manh ((toan cau) OR (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - hanh ((dung cua) or (trung tuan)) hang luong manh ((toan cau) OR (toan cao))*.