Perhaps you should try some spelling variations:
tranh cua » doanh cua, manh cua
tong cong » trong cong, cong cong, dung cong
cong pham » cong phan, chong phap, cong ha
pham toan » pham tuan, pham tan, phap toan
cua tong » cua cong, cua dong, cua nong
toan cau » toan cao, toan ban, toan tap
ha tinh » va tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((ha tinh) or (may tinh)) - canh tranh cua tong cong pham toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((ha tinh) OR (may tinh)) - canh tranh cua tong cong pham toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((ha tinh) or (may tinh)) - canh tranh cua tong cong pham toan cau*.