Perhaps you should try some spelling variations:
thong thuong » thong thong, hang thuong, cong thuong
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trinh » canh tranh, hanh chinh
thuong dan » huong dan, thuong han, thuong dam
trinh cua » tinh cua, trinh luat, trinh quan
cua thong » cua thuong, cua khong, cua tong
toan cau » toan cao, toan ban, toan tai
toan tap » toan 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 ((dieu hanh) or (hieu nganh)) - hanh trinh cua thong thuong dan ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dieu hanh) OR (hieu nganh)) - hanh trinh cua thong thuong dan ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((dieu hanh) or (hieu nganh)) - hanh trinh cua thong thuong dan ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc ((dieu hanh) or (hieu nganh)) - hanh trinh cua thong thuong dan ((toan cau) OR (toan tap))*.