Perhaps you should try some spelling variations:
thanh trung » thanh tung
phong chong » thong thong
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
tong cong » trong cong, cong cong, dung cong
trung ha » trung hoc, trung tam, trung cap
dan phan » doan phan, dan chan, van phan

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 ha ((phong chong) or (tong cong)) dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - thanh trung ha ((phong chong) OR (tong cong)) dan phan tu.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu lang)) - thanh trung ha ((phong chong) or (tong cong)) dan phan tu*.