Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
chieu sang » chieu sach, chieu xanh, hieu lang
can phuong » cac phuong, van phuong, dan phuong
ngang chat » nang cham, ngang cho, nhan chat
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
ngan nhat » ngan nam, nam nhat, tran nhat
tinh can » tinh cao, tinh ca, minh can

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

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