Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh
nhieu tang » nhiet nang
thong cong » trong cong, tong cong, thong thong
hieu lang » hieu quang, hieu van, biet lang
cong tinh » cong trinh, cong vinh, long tinh
hanh han » hanh nhan, hanh phan, hanh san
va thong » va thuong, va phuong, he thong
toan ban » van ban
han va » hang va, hanh va, nhan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((chieu sang) or (nhieu tang))) or (hieu lang)) - hanh han va thong cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu sang) OR (nhieu tang))) OR (hieu lang)) - hanh han va thong cong tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu sang) or (nhieu tang))) or (hieu lang)) - hanh han va thong cong tinh toan ban*.