Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
trung tai » truong tai, trung tam, trung dai
ho chieu » theo chieu, hoc thieu, doi chieu
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
co dong » cong dong, lao dong, hop dong
o dong » _ dong, lao dong, hop dong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - thanh trung tai ((co dong) or (o dong)) van ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung tai ((co dong) OR (o dong)) van ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh trung tai ((co dong) or (o dong)) van ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung tai ((co dong) or (o dong)) van ((toan cau) OR (toan tap))*.