Perhaps you should try some spelling variations:
chiet tach » chieu sach
nhung cong » dung cong, thong cong, hang cong
trung dap » trung cap, trung dam, trung lap
trung dai » truong dai, truong dao, trung tam
ho chiet » ho chieu, ho thiet, hoc thiet
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - thanh ((trung dap) OR (trung dai)) nhung cong san than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - thanh ((trung dap) OR (trung dai)) nhung cong san than cau".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - thanh ((trung dap) OR (trung dai)) nhung cong san than cau*.