Perhaps you should try some spelling variations:
thang thanh » tang thanh, thanh thanh, thong thanh
chieu sang » chieu sach, chieu xanh, hieu lang
dung thang » hung thang, cung thang, dung thuong
nhan dang » nhan dan, phan dang, tran dang
luan dung » lan dung, luan dong, luan hung
thanh phi » thanh pho, thanh phan, thanh pham
ho chieu » theo chieu, hoc thieu, mot chieu
phi dau » phan 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 - ((nhan dang) or (nhanh quang)) luan dung thang thanh phi dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((nhan dang) OR (nhanh quang)) luan dung thang thanh phi dau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((nhan dang) or (nhanh quang)) luan dung thang thanh phi dau*.