Perhaps you should try some spelling variations:
cong thuong » hang thuong
thieu tang » nhieu tang, thieu khang, thieu quang
hanh trinh » hanh chinh
thuong van » thong van, truong van, thuong va
hoc thieu » toc thieu, hoc hien
tuan cau » quan cau, tuan cu, thuan cam
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu tang - ((hanh trinh) or (canh tranh)) cua cong thuong van ((tuan cau) OR (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tang - ((hanh trinh) OR (canh tranh)) cua cong thuong van ((tuan cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tang - ((hanh trinh) or (canh tranh)) cua cong thuong van ((tuan cau) OR (toan cau))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tang - ((hanh trinh) or (canh tranh)) cua cong thuong van ((tuan cau) OR (toan cau))*.