Perhaps you should try some spelling variations:
trung cong » truong cong, trong cong, trung uong
hoc chieu » hoc thieu, hoc hien, hoc dieu
hanh tang » hanh trang, anh tang, hanh mang
cua trung » cua truong, xuan trung, cua nhung
ho chieu » theo chieu, hoc thieu, doi chieu
tang cua » mang cua, hang cua, tang luan
cong san » cong tac

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 (ho chieu)) sach - hanh tang cua trung cong san ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (ho chieu)) sach - hanh tang cua trung cong san ((toan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (ho chieu)) sach - hanh tang cua trung cong san ((toan ban) or (van ban))*.