Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong dong, truong cong
theo chieu » theo tieu, theo chu, thi chieu
thanh tung » thanh cong
thuong con » thuong dong, truong cong, thong cong
doan phan » doanh phan, toan phan, dan phan
ho chieu » hoc thieu, doi chieu, mot chieu
tung cua » trung cua, tuong cua, dung cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) OR (ho chieu)) tinh - thanh tung cua ((thuong cong) or (thuong con)) doan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) tinh - thanh tung cua ((thuong cong) OR (thuong con)) doan phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) tinh - thanh tung cua ((thuong cong) or (thuong con)) doan phan tu".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (ho chieu)) tinh - thanh tung cua ((thuong cong) or (thuong con)) doan phan tu*.