Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
tang cua » hang cua, tang luan, thong cua
mang cua » manh cua, dung cua, ban cua
cong tan » cong tac, cong san, cong thanh
than cau » phan cau, than cap, thanh chau
toan cau » 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: theo chu xanh - hanh ((tang cua) OR (mang cua)) nhung cong tan ((than cau) OR (toan cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - hanh ((tang cua) or (mang cua)) nhung cong tan ((than cau) OR (toan cau))~".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh ((tang cua) or (mang cua)) nhung cong tan ((than cau) OR (toan cau))*.