Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hoang manh » hoang minh, hoang anh, hoang xanh
hoc chieu » hoc thieu, ho chieu, hoc hien
dung cong » dung trong
manh tuan » anh tuan, manh toan, van tuan
minh tuan » anh tuan
manh ung » manh hung, manh tung, manh dung

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 - hoang manh ung dung cong ((manh tuan) or (minh tuan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hoang manh ung dung cong ((manh tuan) OR (minh tuan)) tap.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hoang manh ung dung cong ((manh tuan) or (minh tuan)) tap*.