Perhaps you should try some spelling variations:
khang cong » hang cong, thanh cong, dang cong
theo chieu » ho chieu, theo chu, thi chieu
hanh mang » nhanh mang, hanh trang, nhanh lang
van khang » van khanh, van thanh, van quang
mang van » dang van, tang van, lang van
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (theo tieu)) sach - hanh mang van khang cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) sach - hanh mang van khang cong dan toan tap*.