Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
anh hang » anh hoang, anh hung, anh bang
cao cong » cac cong, cao dang, cua cong
cong van » cong vang, song van, cong tan
cong san » cong tac
tuan cau » toan cau, quan cau, tuan cu
ca cong » cua cong, cac cong, cau cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - anh hang ((ca cong) OR (cao cong)) ((cong van) or (cong san)) tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - anh hang ((ca cong) OR (cao cong)) ((cong van) OR (cong san)) tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - anh hang ((ca cong) OR (cao cong)) ((cong van) or (cong san)) tuan cau".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - anh hang ((ca cong) OR (cao cong)) ((cong van) or (cong san)) tuan cau*.