Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
manh tung » manh hung, thanh tung
nhung van » phung van, nhung bai, nhung cau
dang cong » dung cong
tung cua » trung cua, tuong cua, dung cua
than cao » toan cao, than cap, than sao
thai cao » tai cao, thoai cac, thuat cao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - manh tung cua ((nhung van) or (dang cong)) dan ((than cao) OR (thai cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - manh tung cua ((nhung van) OR (dang cong)) dan ((than cao) OR (thai cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - manh tung cua ((nhung van) or (dang cong)) dan ((than cao) OR (thai cao))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - manh tung cua ((nhung van) or (dang cong)) dan ((than cao) OR (thai cao))*.