Perhaps you should try some spelling variations:
thuong cong » thuong con, thuong dong, truong cong
thanh tung » thanh cong
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
bien tinh » bi tinh, yen tinh, diep tinh
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
co bien » co dien, so bien, bo bien

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

• Performing a fuzzy search may retrieve terms with similar spellings: co bien tinh - ((hanh trinh) or (thanh tung)) cua ((thuong cong) or (thong cong)) tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co bien tinh - ((hanh trinh) OR (thanh tung)) cua ((thuong cong) OR (thong cong)) tac toan cau.
• Adding a wildcard symbol may retrieve word variants: co bien tinh - ((hanh trinh) or (thanh tung)) cua ((thuong cong) or (thong cong)) tac toan cau*.