Perhaps you should try some spelling variations:
cong thuong » hang thuong
hanh dong » anh dong, ha dong
luan cong » luat cong, luong cong, luan chung
thuong va » truong va, thong va, thuong mai
theo chu » theo chieu, cho chu, theo yeu
chao chu » cho chu, cua chu, cao cho
anh dung » anh dong, anh huong, sach dung
toan tap » toan ban
va toan » van toan, bai toan, tap toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chu) or (chao chu)) tinh - ((anh dung) or (hanh dong)) luan cong thuong va toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (chao chu)) tinh - ((anh dung) OR (hanh dong)) luan cong thuong va toan tap.
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (chao chu)) tinh - ((anh dung) or (hanh dong)) luan cong thuong va toan tap*.