Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
chieu sach » chinh sach, chiet tach, chieu sang
cong cong » cong dong, trong cong, dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
tang cua » mang cua, hang cua, tang luan
cong dan » cong san, cong tan, huong dan
toan ban » van ban

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 - hanh ((tang cua) or (trung tuan)) cong cong dan ((toan tap) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((tang cua) OR (trung tuan)) cong cong dan ((toan tap) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((tang cua) or (trung tuan)) cong cong dan ((toan tap) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((tang cua) or (trung tuan)) cong cong dan ((toan tap) OR (toan ban))*.