Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua nhung » va nhung
anh tang » anh bang, anh nang, anh sang
anh dang » anh dong, anh dung, anh bang
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) OR (hieu manh)) - ((anh tang) or (anh dang)) cua nhung cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - ((anh tang) OR (anh dang)) cua nhung cong san toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (hieu manh)) - ((anh tang) or (anh dang)) cua nhung cong san toan cao*".