Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hang cong » dang cong, hang nong, bang cong
thang va » hang va, thong va, thanh va
trang va » tran van, hang va
cong tap » cuong tap, cong tac, cong tan
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 tieu xanh - hanh ((thang va) OR (trang va)) hang cong tap ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh ((thang va) or (trang va)) hang cong tap ((toan cau) OR (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh ((thang va) or (trang va)) hang cong tap ((toan cau) OR (toan cao))*.