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