Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, dong doanh
doanh thanh » danh thanh, doanh nhan, dinh thanh
thieu xanh » chieu xanh, hieu manh, thien danh
thien anh » thien danh, tien anh, thien thanh
luan dong » luan cong, quan dong, luan nong
dong cong » duong cong, dung cong, dang cong
trinh san » trinh han, trinh quan, trinh toan
san ban » sang ban, van ban, can ban

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 (thien anh)) - ((doanh doanh) OR (doanh thanh)) luan dong cong trinh san ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - ((doanh doanh) OR (doanh thanh)) luan dong cong trinh san ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (thien anh)) - ((doanh doanh) OR (doanh thanh)) luan dong cong trinh san ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien anh)) - ((doanh doanh) OR (doanh thanh)) luan dong cong trinh san ban*.