Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
mot chieu » doi chieu, ho chieu
hanh hinh » hanh chinh, hanh tinh, hanh dinh
bang cong » dang cong, bang song, hang cong
hinh cua » chinh cua, sinh cua, tinh cua
dan toan » van toan, dan than, manh toan
toan ban » van ban
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (doi chi)) sach - hanh hinh cua ((nhung cong) or (bang cong)) dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (doi chi)) sach - hanh hinh cua ((nhung cong) OR (bang cong)) dan toan ban.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (doi chi)) sach - hanh hinh cua ((nhung cong) or (bang cong)) dan toan ban*.