Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
chieu sang » chieu sach, chieu xanh, hieu lang
thong cong » trong cong, tong cong, thong thong
ho chieu » theo chieu, hoc thieu, doi chieu
canh ban » can ban, canh dan, canh van
ban quan » van quan
dan phan » doan phan, dan chan, van phan

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - canh ban quan ((nhung phuong) OR (thong cong)) dan phan tu~.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - canh ban quan ((nhung phuong) or (thong cong)) dan phan tu*.