Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
chieu sang » chieu sach, chieu xanh, nhieu tang
thuong quy » nhung quy, thong qua, thong que
hieu lang » hieu quang, nhieu tang, hieu van
dung cong » dung trong
quy dung » duy dung, qua dung, quyet dung
tap toan » tap doan, tap quan, bai toan
ty toan » ly toan, huy toan, tam toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) or (hieu lang)) - thanh thuong quy dung cong ((ty toan) OR (tap toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - thanh thuong quy dung cong ((ty toan) OR (tap toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (hieu lang)) - thanh thuong quy dung cong ((ty toan) OR (tap toan)) cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu lang)) - thanh thuong quy dung cong ((ty toan) OR (tap toan)) cau*.