Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
chieu sang » chieu sach, chieu xanh, hieu lang
thong cong » trong cong, tong cong, thong thong
dong thanh » truong thanh
doi chieu » doc hieu, doi chi, ho chieu
thanh cao » thanh ca, thanh cac, thanh thao
anh nang » ganh nang, anh bang, anh dang

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 sang - ((canh tranh) or (anh nang)) va ((nhung cong) OR (thong cong)) dong thanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - ((canh tranh) OR (anh nang)) va ((nhung cong) OR (thong cong)) dong thanh cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - ((canh tranh) or (anh nang)) va ((nhung cong) OR (thong cong)) dong thanh cao".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - ((canh tranh) or (anh nang)) va ((nhung cong) OR (thong cong)) dong thanh cao*.