Perhaps you should try some spelling variations:
cong thuong » hang thuong
chieu sang » chieu sach, chieu xanh, hieu lang
chieu tinh » trieu tinh, lieu tinh, chau tinh
dinh hoang » minh hoang, dinh hong, dinh huong
hoang phan » hoang nhan, hoang thanh, hoang thoan
thuong tan » thuong han, thuong lan, thuong tin
phan cong » thanh cong
tran van » luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((chieu sang) or (chieu tinh)) - dinh hoang phan cong thuong tan tran van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((chieu sang) OR (chieu tinh)) - dinh hoang phan cong thuong tan tran van.
• Adding a wildcard symbol may retrieve word variants: doc ((chieu sang) or (chieu tinh)) - dinh hoang phan cong thuong tan tran van*.