Perhaps you should try some spelling variations:
trung thanh » truong thanh
chieu sang » chieu sach, chieu xanh, hieu lang
hieu quang » thieu quang, hieu quan, hieu qua
trung tuan » trung tam, tran tuan, truong thanh
hang luong » nang luong, hang thuong, hoang vuong
luong va » dung va
than cap » khan cap, thanh lap, thanh cac
va than » va thanh, van than, va phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sang) or (hieu quang)) - thanh ((trung tuan) or (trung thanh)) hang luong va than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (hieu quang)) - thanh ((trung tuan) OR (trung thanh)) hang luong va than cap.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) or (hieu quang)) - thanh ((trung tuan) or (trung thanh)) hang luong va than cap*.