Perhaps you should try some spelling variations:
cong thuong » hang thuong
hanh trinh » canh tranh, hanh chinh
thuong van » thong van, truong van, thuong va
trinh cua » tinh cua, trinh luat, trinh quan
doc hieu » toc thieu, hoc thieu, hoc hien
tao cao » bao cao, toan cao
nam cao » nam sao, nam giao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (theo tieu)) xanh - hanh trinh cua cong thuong van ((tao cao) or (nam cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (theo tieu)) xanh - hanh trinh cua cong thuong van ((tao cao) OR (nam cao)).
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (theo tieu)) xanh - hanh trinh cua cong thuong van ((tao cao) or (nam cao))*.