Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
trung tuan » trung thanh, trung tam, tran tuan
tang thanh » trung thanh, hoang thanh, quang thanh
dang thanh » dong thanh, dang hanh, hoang thanh
tuan dung » tuan duong, tran dung, tan dung
dung cong » dung trong

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