Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
thong cong » trong cong, tong cong, thong thong
ngang chat » nang cham, ngang cho, nhan chat
hanh sinh » hanh tinh, hanh dinh, hinh sinh
ngan nhat » ngan nam, nam nhat, tran nhat
va thong » va thuong, va phuong, he thong
sinh va » sinh vat, tinh va, dinh van

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu sang - hanh sinh va thong cong ((ngang chat) or (ngan nhat)) ran~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sang - hanh sinh va thong cong ((ngang chat) OR (ngan nhat)) ran*.