Perhaps you should try some spelling variations:
trinh tinh » trinh kinh, trinh dinh, trinh sinh
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
trinh tin » trinh kinh, trinh toan, trinh tu
cong cong » cong dong, trong cong, dung cong
tinh cua » trinh cua, sinh cua, tinh chat
cong tan » cong tac, cong san, cong thanh
than cau » phan cau, than cap, thanh chau
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: doi ((trinh tinh) or (trinh tin)) - nhanh tinh cua cong cong tan ((than cau) OR (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((trinh tinh) OR (trinh tin)) - nhanh tinh cua cong cong tan ((than cau) OR (toan cau))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((trinh tinh) or (trinh tin)) - nhanh tinh cua cong cong tan ((than cau) OR (toan cau))*".