Perhaps you should try some spelling variations:
chiet tach » chieu sach
doanh luan » doanh nhan
hang cong » dang cong, hang nong, bang cong
cong quan » cuong quan, cong quang, tong quan
quan quan » quan quang, qua quan, quan luan
hieu cac » hieu luc, hieu va, hieu van
quan cau » quang cao, toan cau, quan ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu cac) or (chiet tach)) - canh ((doanh cua) or (doanh luan)) hang cong quan quan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu cac) OR (chiet tach)) - canh ((doanh cua) OR (doanh luan)) hang cong quan quan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu cac) or (chiet tach)) - canh ((doanh cua) or (doanh luan)) hang cong quan quan cau*.