Perhaps you should try some spelling variations:
cong thuong » hang thuong
hanh trinh » canh tranh, hanh chinh
hiem ngan » kim ngan, viem gan
trinh cua » tinh cua, trinh luat, trinh quan
thuong va » truong va, thong va, thuong mai
phong cau » phong cac, phong cai, phong cach
thong cau » thong cac, thong cap, thong tu
hoc hiem » hoc hien, hoc thieu, hoc thiet

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hiem ngan - hanh trinh cua cong thuong va ((phong cau) or (thong cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hiem ngan - hanh trinh cua cong thuong va ((phong cau) OR (thong cau))*.