Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
tuong cua » truong cua, huong cua, thong cua
tung cua » trung cua, dung cua, tang cua
cong san » cong tac
san toan » van toan, dan toan, manh toan
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: hoc thieu xanh - thanh ((tung cua) or (tuong cua)) thuong cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((tung cua) OR (tuong cua)) thuong cong san toan ban*.