Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu xanh » chieu sach, chieu sang, chieu tinh
cong khanh » cong thanh, cong khan, cong nhan
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh hang » thanh hang, hang hang, hanh han
toan cao » toan ban
toan tap » toan 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 chieu xanh - hanh hang va thuong cong khanh ((toan cao) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - hanh hang va thuong cong khanh ((toan cao) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh hang va thuong cong khanh ((toan cao) OR (toan tap))*.