Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
cua truong » cua trung, xuan truong, cac truong
trung cua » truong cua, trung tuan, trung cap
luong tap » luong tai, luong tham, luong thai
cuong tap » cong tac, luong tai, cong tan
ho chieu » theo chieu, hoc thieu, doi chieu
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 - thanh trung cua truong ((luong tap) OR (cuong tap)) ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung cua truong ((luong tap) OR (cuong tap)) ((toan tap) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh trung cua truong ((luong tap) OR (cuong tap)) ((toan tap) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung cua truong ((luong tap) OR (cuong tap)) ((toan tap) or (toan ban))*.