Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cong thanh » cong trinh, cong tan, truong thanh
dong thanh » truong thanh
manh hung » anh huong
cua nhung » va nhung
hoa sinh » cho sinh
hung cua » huong cua, chung cua, khung cua
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) or (hoa sinh)) - manh hung cua nhung ((cong thanh) or (dong thanh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (hoa sinh)) - manh hung cua nhung ((cong thanh) OR (dong thanh)) toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (hoa sinh)) - manh hung cua nhung ((cong thanh) or (dong thanh)) toan ban*.