Perhaps you should try some spelling variations:
trung thanh » truong thanh
chieu sach » chinh sach, chieu sang, chieu xanh
trung tuan » trung tam, tran tuan, truong thanh
trong quan » thong quan, tong quan, thong quang
quan tran » quang tran, quan tren, xuan tran
tran ban » tranh ban, tran van, toan 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) OR (chiet tach)) - hanh ((trung tuan) or (trung thanh)) dung trong quan tran ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chiet tach)) - hanh ((trung tuan) OR (trung thanh)) dung trong quan tran ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chiet tach)) - hanh ((trung tuan) or (trung thanh)) dung trong quan tran ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chiet tach)) - hanh ((trung tuan) or (trung thanh)) dung trong quan tran ban*.