Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
tieu xanh » tieu danh, chieu xanh, dieu hanh
tranh cua » doanh cua, manh cua
bang cong » dang cong, bang song, hang cong
sat phan » sat nhan, vat phan, xuat phan
phan cau » phan dau, phan cac, phan tu

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 tieu xanh - canh tranh cua ((((nhung cong) OR (thong cong))) OR (bang cong)) sat phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - canh tranh cua ((((nhung cong) OR (thong cong))) or (bang cong)) sat phan cau~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - canh tranh cua ((((nhung cong) OR (thong cong))) or (bang cong)) sat phan cau*.