Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
hoc chieu » hoc thieu, ho chieu, hoc hien
cua nhung » va nhung
anh tang » anh dang, anh nang, anh sang
anh bang » anh hoang, anh quang, tinh bang
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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 - ((anh tang) OR (anh bang)) cua nhung cong dan than cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - ((anh tang) OR (anh bang)) cua nhung cong dan than cao".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - ((anh tang) OR (anh bang)) cua nhung cong dan than cao*.