Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong dong, truong cong
manh trung » manh tung, thanh trung, manh hung
trung tuan » trung thanh, trung tam, tran tuan
thuong con » thuong dong, truong cong, thong cong
hien hanh » dieu hanh
toan cao » toan tap
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 hanh - manh trung tuan ((thuong cong) OR (thuong con)) dang ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - manh trung tuan ((thuong cong) OR (thuong con)) dang ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien hanh - manh trung tuan ((thuong cong) OR (thuong con)) dang ((toan cao) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - manh trung tuan ((thuong cong) OR (thuong con)) dang ((toan cao) or (toan ban))*.