Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
canh trinh » canh tranh, hanh trinh, canh tinh
doi chieu » doc hieu, doi chi, ho chieu
trinh mat » trinh vat, trinh may, trinh mau
mat trong » vat trong, dat trong, mat thong
cong ban » cong bang, cong dan, dong ban
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
than cau » toan cau, phan cau, than cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu tinh - canh trinh mat trong ((((cong ban) OR (cong tan))) or (cong san)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - canh trinh mat trong ((((cong ban) OR (cong tan))) OR (cong san)) than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu tinh - canh trinh mat trong ((((cong ban) OR (cong tan))) or (cong san)) than cau".
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - canh trinh mat trong ((((cong ban) OR (cong tan))) or (cong san)) than cau*.