Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
dien sach » dien anh
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
cong san » cong tac
than tap » toan tap, han tap, phan tap
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: hoc ((chieu sach) or (dien sach)) - manh trung cua thong cong san ((than tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (dien sach)) - manh trung cua thong cong san ((than tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (dien sach)) - manh trung cua thong cong san ((than tap) or (toan ban))*.