Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thuong con » thuong dong, truong cong, thong cong
ho chieu » theo chieu, hoc thieu, doi chieu
dung cua » dung luan, dung cho
tac toan » tap toan, tam toan, hach toan
toan ban » van ban
con tac » cong tac, con tap, can tac

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 - hanh ((huong cua) OR (dung cua)) thuong con tac toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - hanh ((huong cua) OR (dung cua)) thuong con tac toan ban".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh ((huong cua) OR (dung cua)) thuong con tac toan ban*.