Perhaps you should try some spelling variations:
thuong dong » phuong dong, tuong dong, chuong dong
thuong cong » thong cong, thuong con, truong cong
hanh trinh » hanh chinh
theo chuc » theo chu, tho chu, treo chu
tac toan » tap toan, tam toan, hach toan
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: theo chuc nang - ((hanh trinh) or (canh tranh)) cua ((thuong cong) OR (thuong dong)) tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chuc nang - ((hanh trinh) OR (canh tranh)) cua ((thuong cong) OR (thuong dong)) tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chuc nang - ((hanh trinh) or (canh tranh)) cua ((thuong cong) OR (thuong dong)) tac toan cau".
• Adding a wildcard symbol may retrieve word variants: theo chuc nang - ((hanh trinh) or (canh tranh)) cua ((thuong cong) OR (thuong dong)) tac toan cau*.