Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu xanh » chieu sach, chieu sang, chieu tinh
chung cua » chung cu, huong cua, thong cua
cua tinh » cua sinh, va tinh, ha tinh
dung cua » dung luan, dung cho
cong tap » cuong tap, cong tac, cong tan
tap doan » tap quan
doan cau » toan cau, doan dau, doan cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (cua tinh)) - manh ((chung cua) OR (dung cua)) thuong cong tap doan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (cua tinh)) - manh ((chung cua) OR (dung cua)) thuong cong tap doan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (cua tinh)) - manh ((chung cua) OR (dung cua)) thuong cong tap doan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (cua tinh)) - manh ((chung cua) OR (dung cua)) thuong cong tap doan cau*.