Perhaps you should try some spelling variations:
nang truong » tang truong, quang truong, nang luong
truong gian » truong giang, truong giao, truong van
chieu sang » chieu sach, chieu xanh, hieu lang
thanh cham » thanh pham, thanh cha, hanh cham
hieu van » hieu va, thien van, lieu va
cong san » cong tac
phan cau » phan dau, phan cac, phan tu

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 van)) - nang truong gian trong cong san ((thanh cham) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu van)) - nang truong gian trong cong san ((thanh cham) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu van)) - nang truong gian trong cong san ((thanh cham) or (phan cau))*.