Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
trung chan » trong chan, trung can, trung nhan
trung phan » trung thanh, trung ha, dung phan
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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 tinh - thanh ((trung chan) or (trung phan)) thuong ((cong dan) OR (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - thanh ((trung chan) OR (trung phan)) thuong ((cong dan) OR (cong san)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - thanh ((trung chan) or (trung phan)) thuong ((cong dan) OR (cong san)) toan cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - thanh ((trung chan) or (trung phan)) thuong ((cong dan) OR (cong san)) toan cau*.