Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tang » hanh trang, hanh mang, hanh tung
cua nhung » va nhung
chi xanh » chi danh, chi hanh, chieu xanh
anh tang » anh bang, anh dang, anh nang
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap
chi anh » chi danh, chi hanh, thi anh

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

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