Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sang » chieu sach, chieu xanh, hieu lang
phan quang » pham quang, phan quan, nhanh quang
hang cong » dang cong, hang nong, bang cong
cong phan » cong nhan, cong khan, chong phap
cong pha » cong pham, cong ha, cong nha
pha hang » pham hang, nha hang, pham thang
quang he » quan he, quang le, quang de

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu tinh) or (chieu sang)) - thanh cong pha hang cong phan quang he~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (chieu sang)) - thanh cong pha hang cong phan quang he.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) or (chieu sang)) - thanh cong pha hang cong phan quang he*.