Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung dung » phuong dung, ung dung, trung dung
thong dung » thong cong, thong thuong
hieu lang » chieu sang, hieu quang, nhieu tang
canh manh » lanh manh, canh tranh, cach mang
anh quang » anh xquang, anh quan, nhanh quang
quang cao » nang cao, quang nam, quang cua
manh cua » doanh cua, ban cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu xanh) or (hieu lang)) - canh manh cua ((nhung dung) OR (thong dung)) anh quang cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (hieu lang)) - canh manh cua ((nhung dung) OR (thong dung)) anh quang cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (hieu lang)) - canh manh cua ((nhung dung) OR (thong dung)) anh quang cao".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (hieu lang)) - canh manh cua ((nhung dung) OR (thong dung)) anh quang cao*.