Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, nhieu tang
trung tuan » trung thanh, trung tam, tran tuan
hieu lang » hieu quang, nhieu tang, hieu van
tuan dong » tuan duong, quan dong, luan dong
dong cong » duong cong, dung cong, dang cong
cong tai » cong thai, cong tac, dong tai
tren tau » tren thuc, tren may, tren thi
tren dat » tren dia, tren may

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