Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, chau tinh, kieu tinh
doanh luan » doanh nhan
thong cong » trong cong, tong cong, thong thong
lieu tinh » trieu tinh, diep tinh, bien tinh
cong san » cong tac
san toan » van toan, dan toan, manh 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: doi ((chieu tinh) or (lieu tinh)) - hanh ((doanh cua) OR (doanh luan)) thong cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu tinh) OR (lieu tinh)) - hanh ((doanh cua) OR (doanh luan)) thong cong san toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu tinh) or (lieu tinh)) - hanh ((doanh cua) OR (doanh luan)) thong cong san toan cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu tinh) or (lieu tinh)) - hanh ((doanh cua) OR (doanh luan)) thong cong san toan cau*.