Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
chieu quang » hieu quang, thieu quang, chu quang
thuong cac » thong cac, truong cac, phuong cach
chong phap » phuong phap
cong pham » cong phan, cong ha, cong hai
ho chieu » theo chieu, hoc thieu, mot chieu
cac ung » cac chung, cac cong, cac dang

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 quang - thanh thuong cac ung ((cong pham) or (chong phap)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu quang - thanh thuong cac ung ((cong pham) OR (chong phap)) van ban.
• Adding a wildcard symbol may retrieve word variants: ho chieu quang - thanh thuong cac ung ((cong pham) or (chong phap)) van ban*.