Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trang » thanh trung, canh tranh, hanh trinh
hoc thieu » toc thieu
trang cua » tranh cua, tang cua, trung cua
cua nhung » va nhung
cong luan » tong luan, cong tuan, dong luan
ho chieu » theo chieu, doi chieu, mot chieu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (((hoc thieu) or (hoc hien)))) sach - hanh trang cua nhung cong luan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (((hoc thieu) OR (hoc hien)))) sach - hanh trang cua nhung cong luan van ban.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (((hoc thieu) or (hoc hien)))) sach - hanh trang cua nhung cong luan van ban*.