Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
trinh toan » tinh toan, thanh toan, trinh han
trinh quan » tinh quang, trinh luat, trinh han
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
cong doan » cong dan, cong hoan, dong doanh
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap

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 toan) or (trinh quan)) nhung cong doan ((phan cau) OR (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - canh ((trinh toan) OR (trinh quan)) nhung cong doan ((phan cau) OR (phan cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu tinh - canh ((trinh toan) or (trinh quan)) nhung cong doan ((phan cau) OR (phan cac))".
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - canh ((trinh toan) or (trinh quan)) nhung cong doan ((phan cau) OR (phan cac))*.