Perhaps you should try some spelling variations:
thanh thang » nhanh thang, thanh thanh, thanh hang
thang gian » thanh gian, thanh giang, thang gieng
cong thanh » dong thanh, cong trinh, cong tan
gian lang » gian dan
lang cong » dang cong, bang cong, hang cong
thanh van » thanh san, thanh toan, thanh phan
ho chieu » theo chieu, hoc thieu, 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 (toc thieu)) sach - thanh thang gian lang cong thanh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (toc thieu)) sach - thanh thang gian lang cong thanh van ban*.