Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
manh trung » manh tung, thanh trung, manh hung
trung cap » truong cao, trung tam
tang bang » dang bang, tang ban, tang quang
ho chieu » theo chieu, hoc thieu, doi chieu
cap dung » ap dung, cao dung, chan dung
cong van » cong vang, song van, cong tan
cong san » cong tac
tan ban » toan ban, tang 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 - manh trung cap dung ((cong van) OR (cong san)) ((tan ban) or (tang bang))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - manh trung cap dung ((cong van) OR (cong san)) ((tan ban) OR (tang bang)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - manh trung cap dung ((cong van) OR (cong san)) ((tan ban) or (tang bang))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - manh trung cap dung ((cong van) OR (cong san)) ((tan ban) or (tang bang))*.