Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
doi trieu » dong trieu, doi chieu, doi trinh
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
cong manh » cong danh, duong manh, cong thanh
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: doi trieu tinh - hanh ((trung cua) OR (trung cap)) nhung cong manh ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi trieu tinh - hanh ((trung cua) OR (trung cap)) nhung cong manh ((toan cau) or (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: doi trieu tinh - hanh ((trung cua) OR (trung cap)) nhung cong manh ((toan cau) or (toan cao))*.