Perhaps you should try some spelling variations:
thuong tac » tuong tac, huong tac, thuong thuc
hien xanh » hien hanh, hien nhanh, chieu xanh
hanh dong » anh dong, ha dong
dong cua » dung cua, cong cua, huong cua
cua hang » cua dang, cua nhung, cua cong
tac toan » tap toan, tam toan, hach 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 hien xanh - hanh dong cua hang thuong tac toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh dong cua hang thuong tac toan ban*.