Perhaps you should try some spelling variations:
dung thuong » dung trong, hang thuong, cong thuong
hanh trinh » canh tranh, hanh chinh
chieu tinh » trieu tinh, lieu tinh, chau tinh
trinh hanh » trinh thanh, trinh han, trinh anh
thuong ban » thuong han, thuong lan, tuong ban
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh dung » thanh dung, anh dung, hanh dong
than tap » toan tap, han tap, than cap
phan tap » phan lap, han tap, pha tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu manh) or (chieu tinh)) - hanh trinh hanh dung thuong ban ((than tap) OR (phan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu manh) OR (chieu tinh)) - hanh trinh hanh dung thuong ban ((than tap) OR (phan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((hieu manh) or (chieu tinh)) - hanh trinh hanh dung thuong ban ((than tap) OR (phan tap))".
• Adding a wildcard symbol may retrieve word variants: doi ((hieu manh) or (chieu tinh)) - hanh trinh hanh dung thuong ban ((than tap) OR (phan tap))*.