Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thien hach » thien thanh, hien hanh
canh manh » lanh manh, canh tranh, cach mang
hang cong » dang cong, hang nong, bang cong
manh toan » thanh toan, tinh toan
manh cua » doanh cua, ban cua
cua hang » cua dang, cua nhung, cua cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (thien hach)) - canh manh cua hang cong ((manh toan) or (anh tuan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (thien hach)) - canh manh cua hang cong ((manh toan) OR (anh tuan)) tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (thien hach)) - canh manh cua hang cong ((manh toan) or (anh tuan)) tap*.