Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, truong thanh
tinh dinh » trinh dinh, tinh ninh, tinh binh
tran tuan » tran xuan, tran quang, tran thanh
hung cong » nhung cong, hung cuong, phung cong
doi tinh » doi trinh, hoi tinh, don tinh
cong san » cong tac
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 tinh dinh - thanh ((trung tuan) OR (tran tuan)) hung cong san ((toan cau) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi tinh dinh - thanh ((trung tuan) OR (tran tuan)) hung cong san ((toan cau) OR (van ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi tinh dinh - thanh ((trung tuan) OR (tran tuan)) hung cong san ((toan cau) or (van ban))".
• Adding a wildcard symbol may retrieve word variants: doi tinh dinh - thanh ((trung tuan) OR (tran tuan)) hung cong san ((toan cau) or (van ban))*.