Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
canh manh » lanh manh, canh tranh, cach mang
hang cong » dang cong, hang nong, bang cong
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
manh cua » doanh cua, ban cua
van phan » van phong, van thanh, luan phan
phan cau » phan dau, phan cac, phan tu

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 tinh - canh manh cua ((hang cong) or (dung cong)) van phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - canh manh cua ((hang cong) OR (dung cong)) van phan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - canh manh cua ((hang cong) or (dung cong)) van phan cau*.