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