Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
hanh trinh » hanh chinh
ca thuong » cao thuong, cua thuong, va thuong
chi tach » chiu trach, chiet tach, chi thanh
dan phan » doan phan, van phan, dam phan
dan chan » dan gian, dan ca, van chat
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi tach - ((hanh trinh) or (canh tranh)) ca thuong cong ((dan phan) OR (dan chan)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi tach - ((hanh trinh) OR (canh tranh)) ca thuong cong ((dan phan) OR (dan chan)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi tach - ((hanh trinh) or (canh tranh)) ca thuong cong ((dan phan) OR (dan chan)) tu".
• Adding a wildcard symbol may retrieve word variants: doi chi tach - ((hanh trinh) or (canh tranh)) ca thuong cong ((dan phan) OR (dan chan)) tu*.