Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
hanh trinh » hanh chinh
cua thuong » cua truong, cua phuong, ca thuong
tien manh » tien anh, tien thanh, tieng anh
hoc tien » hoc tieng, hoc hien, hoc vien
cong san » cong tac
san toan » van toan, dan toan, manh toan
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: hoc tien manh - ((hanh trinh) or (canh tranh)) cua thuong cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tien manh - ((hanh trinh) OR (canh tranh)) cua thuong cong san toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc tien manh - ((hanh trinh) or (canh tranh)) cua thuong cong san toan cao*.