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 tong » toan tong, thuan trong, toan thong
tong cong » trong cong, cong cong, dung cong
cong van » cong vang, cong san, song van
ban can » ban dan, ban hang, ban hanh

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