Perhaps you should try some spelling variations:
tieu trinh » tien trinh, tien thinh, trieu tinh
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than cau » toan cau, phan cau, thanh chau
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: theo tieu trinh - anh tang cua cong ((cong dan) OR (cong san)) ((than cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu trinh - anh tang cua cong ((cong dan) OR (cong san)) ((than cau) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu trinh - anh tang cua cong ((cong dan) OR (cong san)) ((than cau) or (than cap))".
• Adding a wildcard symbol may retrieve word variants: theo tieu trinh - anh tang cua cong ((cong dan) OR (cong san)) ((than cau) or (than cap))*.