Perhaps you should try some spelling variations:
khuong tinh » chuong trinh, phuong trinh, phuong binh
chieu sang » chieu sach, chieu xanh, hieu lang
chu khuong » chu khong, chu phuong, chuc thuong
thong cua » thong quan, thong tu, huong cua
tang luan » dung luan
ho chieu » theo chieu, hoc thieu, doi chieu

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