Perhaps you should try some spelling variations:
chiet tach » chieu sach
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
dang cong » dung cong
hang nong » thang long, han tong
manh toan » thanh toan, anh tuan, tinh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chiet tach) or (hieu lang)) - canh tranh cua ((dang cong) or (hang nong)) manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chiet tach) OR (hieu lang)) - canh tranh cua ((dang cong) OR (hang nong)) manh toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chiet tach) or (hieu lang)) - canh tranh cua ((dang cong) or (hang nong)) manh toan cau*.