Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
chieu sang » chieu sach, chieu xanh, hieu lang
cua phuong » cuu phuong, cuc phuong, luan phuong
ngang chat » nang cham, ngan nhat, ngang cho
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
tran nhat » toan nha, tran chau
tinh cua » trinh cua, sinh cua, tinh chat

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 cua phuong cong ((ngang chat) or (tran nhat)) ran~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sang - hanh tinh cua phuong cong ((ngang chat) OR (tran nhat)) ran*.