Perhaps you should try some spelling variations:
chiet tach » chieu sach
manh trung » manh tung, thanh trung, manh hung
ho chiet » ho chieu, ho thiet, hoc thiet
trung da » trung dai, trung dam, truong da
da luong » dai luong, do luong, du luong
cong dan » cong san, huong dan, cong tac
cong tan » cong tac, cong san, cong thanh

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 - manh trung da luong ((((cong dan) OR (cong dong))) or (cong tan)) thanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - manh trung da luong ((((cong dan) OR (cong dong))) OR (cong tan)) thanh san.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - manh trung da luong ((((cong dan) OR (cong dong))) or (cong tan)) thanh san".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - manh trung da luong ((((cong dan) OR (cong dong))) or (cong tan)) thanh san*.