Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
nhanh lang » nhanh quang, nhanh thang, nhan dang
hieu manh » chieu xanh, hieu nganh, dieu hanh
lang luan » tang luan, hang luan, bang luan
luan cong » luat cong, luong cong, luan chung
dong manh » duong manh, dong anh, dang manh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu manh) or (chieu sang)) - nhanh lang luan cong dong manh ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sang)) - nhanh lang luan cong dong manh ((toan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sang)) - nhanh lang luan cong dong manh ((toan ban) or (van ban))*.