Perhaps you should try some spelling variations:
trinh tinh » trinh kinh, trinh tin, trinh sinh
trinh dinh » trinh kinh, trinh sinh, trinh dung
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
cong cong » cong dong, trong cong, dung cong
nang caou » nang cau, hang cau, nang dau
tinh cua » trinh cua, sinh cua, tinh chat
cong ban » cong bang, cong san, cong tan

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 dinh)) - nhanh tinh cua cong cong ban ((nang caou) or (nang cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((trinh tinh) OR (trinh dinh)) - nhanh tinh cua cong cong ban ((nang caou) OR (nang cao))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((trinh tinh) OR (trinh dinh)) - nhanh tinh cua cong cong ban ((nang caou) or (nang cao))*".