Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
canh trinh » canh tranh, hanh trinh, canh tinh
ho chieu » theo chieu, hoc thieu, doi chieu
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cau » toan ban, toan tap, toan tai
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 - canh trinh va nhung ((cong dan) or (cong san)) ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - canh trinh va nhung ((cong dan) OR (cong san)) ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - canh trinh va nhung ((cong dan) or (cong san)) ((toan cau) or (toan cao))*.