Perhaps you should try some spelling variations:
hoc chieu » hoc thieu, ho chieu, hoc dieu
cong bang » cuong bang, dong bang, hong bang
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cua dung » cua dang, cua dong, qua dung
cong ban » cong san, cong tan, cong dan
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) OR (hoc hien)) sach - anh tang cua dung ((cong ban) or (cong bang)) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) sach - anh tang cua dung ((cong ban) OR (cong bang)) than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc hien)) sach - anh tang cua dung ((cong ban) or (cong bang)) than cao".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (hoc hien)) sach - anh tang cua dung ((cong ban) or (cong bang)) than cao*.