Perhaps you should try some spelling variations:
hanh trang » thanh trung, hanh trinh, minh trang
luan tuong » luan luong, luat thuong, xuan truong
tuong cong » truong cong, trong cong, tong cong
theo lieu » theo tieu, theo chieu, theo yeu
lieu tinh » trieu tinh, diep 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: theo lieu tinh - ((hanh trang) or (canh tranh)) luan tuong cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo lieu tinh - ((hanh trang) OR (canh tranh)) luan tuong cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: theo lieu tinh - ((hanh trang) or (canh tranh)) luan tuong cong tac toan cau*.