Perhaps you should try some spelling variations:
hanh tranh » hanh trinh, hanh trang, lanh tranh
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
lieu tinh » trieu tinh, diep tinh, bien tinh
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, 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: ho ((chieu xanh) or (lieu tinh)) - ((hanh tranh) or (canh tranh)) va nhung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (lieu tinh)) - ((hanh tranh) OR (canh tranh)) va nhung cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (lieu tinh)) - ((hanh tranh) or (canh tranh)) va nhung cong dan toan cau*.