Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
cua thuong » cua truong, cua phuong, ca thuong
hanh trang » thanh trung, hanh trinh, minh trang
lieu tinh » trieu tinh, bien tinh
cong tac » cong ty
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: doi ((lieu tinh) OR (diep tinh)) - ((hanh trang) or (canh tranh)) cua thuong cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((lieu tinh) OR (diep tinh)) - ((hanh trang) OR (canh tranh)) cua thuong cong tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((lieu tinh) OR (diep tinh)) - ((hanh trang) or (canh tranh)) cua thuong cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: doi ((lieu tinh) OR (diep tinh)) - ((hanh trang) or (canh tranh)) cua thuong cong tac toan cau*.