Perhaps you should try some spelling variations:
cong cong » cong dong, trong cong, dung cong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
mang cua » manh cua, ban cua, cong cua
dung cua » dung luan, dung cho
cong tac » cong ty
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: theo chu xanh - hanh ((mang cua) OR (dung cua)) cong cong tac ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - hanh ((mang cua) or (dung cua)) cong cong tac ((toan cau) OR (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh ((mang cua) or (dung cua)) cong cong tac ((toan cau) OR (toan cao))*.