Perhaps you should try some spelling variations:
khuong tinh » chuong trinh, phuong trinh, phuong binh
chieu sang » chieu sach, chieu xanh, nhieu tang
chu khuong » chu khong, chu phuong, chuc thuong
hieu lang » hieu quang, nhieu tang, hieu van
thong cua » thong quan, thong tu, huong cua
tang luan » dung luan
toan tap » toan ban

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) OR (hieu lang)) - hanh ((thong cua) or (tang luan)) chu khuong tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - hanh ((thong cua) OR (tang luan)) chu khuong tinh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (hieu lang)) - hanh ((thong cua) or (tang luan)) chu khuong tinh toan tap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (hieu lang)) - hanh ((thong cua) or (tang luan)) chu khuong tinh toan tap*.