Perhaps you should try some spelling variations:
thanh trung » thanh tung
phong chong » thong thong
chieu sang » chieu sach, chieu xanh, hieu lang
tong cong » trong cong, cong cong, dung cong
hieu van » hieu va, thien van, lieu va
trung ha » trung hoc, trung tam, trung cap
dan phan » doan phan, dan chan, van phan
phan dau » phan tu, hang dau

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