Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
truong tai » truong dai, truong thi, trung tam
truong cao » truong dai
cong thanh » dong thanh, cong trinh, cong tan
cong manh » cong danh, duong manh, hoang manh
ho chieu » theo chieu, hoc thieu, doi chieu
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: ho chieu xanh - thanh ((truong tai) OR (truong cao)) nhung ((cong manh) or (cong thanh)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - thanh ((truong tai) OR (truong cao)) nhung ((cong manh) OR (cong thanh)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - thanh ((truong tai) OR (truong cao)) nhung ((cong manh) or (cong thanh)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh ((truong tai) OR (truong cao)) nhung ((cong manh) or (cong thanh)) toan cao*.