Perhaps you should try some spelling variations:
mot chieu » doi chieu, ho chieu
canh manh » lanh manh, canh tranh, cach mang
manh cua » doanh cua, ban cua
dong ban » dong bang, dong san, dong bac
ban than » ban thanh, van thanh, ban hang
than cau » toan cau, phan cau, than cap
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 - canh manh cua cong dong ban than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (doi chi)) sach - canh manh cua cong dong ban than cau.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (doi chi)) sach - canh manh cua cong dong ban than cau*.