Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
chau tinh » cuu tinh, ha tinh, cua tinh
luan nang » luan van, van nang, luan san
song tinh » cong tinh, long tinh, dong tinh
chu tinh » chua tinh, cuu tinh, chu tich
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: chao ((chu tinh) OR (chau tinh)) - canh tranh luan nang song tinh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((chu tinh) OR (chau tinh)) - canh tranh luan nang song tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: chao ((chu tinh) OR (chau tinh)) - canh tranh luan nang song tinh toan cau*.