Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
ho chieu » theo chieu, hoc thieu, doi chieu
trinh va » trinh van, trinh vat, trinh vi
trinh ve » trinh he, trinh vi, trinh viet
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 - hanh ((trinh va) OR (trinh ve)) dung ((cong dan) OR (cong san)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - hanh ((trinh va) OR (trinh ve)) dung ((cong dan) OR (cong san)) toan cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - hanh ((trinh va) OR (trinh ve)) dung ((cong dan) OR (cong san)) toan cau*.