Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
chieu sang » chieu sach, chieu xanh, hieu lang
hanh sinh » hanh tinh, hanh dinh, hinh sinh
nang cham » trang cham, nang cao, nang phat
ngan nhat » ngan nam, nam nhat, tran nhat
ho chieu » theo chieu, hoc thieu, mot chieu
va khong » va thong, va phong, va thuong
sinh va » sinh vat, tinh va, dinh van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh sinh va khong cong ((nang cham) OR (ngan nhat)) ran~.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh sinh va khong cong ((nang cham) or (ngan nhat)) ran*.