Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, ho chieu
hang hang » nang hang, hung thang, lang thang
cua thong » cua thuong, cua khong, cua tong
cong tinh » cong trinh, cong vinh, long tinh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - ((hang hang) OR (cang thang)) cua thong cong tinh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((hang hang) OR (cang thang)) cua thong cong tinh toan ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((hang hang) OR (cang thang)) cua thong cong tinh toan ban*.