Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, nhieu tang
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
hieu lang » hieu quang, nhieu tang, hieu van
canh tinh » hanh tinh, manh tinh, canh tranh
dung cong » dung trong
tinh ung » tinh dung, trinh ung, tinh hung
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: doi ((chieu sach) or (((chieu sang) OR (hieu lang)))) - canh tinh ung dung cong thanh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (((chieu sang) OR (hieu lang)))) - canh tinh ung dung cong thanh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) or (((chieu sang) OR (hieu lang)))) - canh tinh ung dung cong thanh toan cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (((chieu sang) OR (hieu lang)))) - canh tinh ung dung cong thanh toan cau*.