Perhaps you should try some spelling variations:
trung thanh » truong thanh
chieu sang » chieu sach, chieu xanh, hieu lang
nhieu tang » hieu lang, nhiet nang
trung tran » trung tuan, trung tam, hung tran
cong trong » cong thuong, duong trong, cong trinh
trong san » trong cac, cong san, dong san
san thanh » ban thanh, van thanh, son thanh
thanh lap » thanh san, phan lap, thanh hai

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 (nhieu tang)) - thanh ((trung tran) OR (trung thanh)) cong trong san thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (nhieu tang)) - thanh ((trung tran) OR (trung thanh)) cong trong san thanh lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (nhieu tang)) - thanh ((trung tran) OR (trung thanh)) cong trong san thanh lap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (nhieu tang)) - thanh ((trung tran) OR (trung thanh)) cong trong san thanh lap*.