Perhaps you should try some spelling variations:
trinh tinh » trinh kinh, trinh tin, trinh minh
trinh dinh » trinh kinh, trinh dung, trinh lich
trinh sinh » trinh kinh, tinh sinh, trinh lich
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
cong cong » cong dong, trong cong, dung cong
cong san » cong tac
san than » sang than, san thanh, ban than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((trinh tinh) or (((trinh dinh) OR (trinh sinh)))) - hanh trinh cua cong cong san than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((trinh tinh) OR (((trinh dinh) OR (trinh sinh)))) - hanh trinh cua cong cong san than cap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((trinh tinh) or (((trinh dinh) OR (trinh sinh)))) - hanh trinh cua cong cong san than cap*".