Perhaps you should try some spelling variations:
phuong manh » phuong anh, phung manh, phuong danh
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
manh toan » thanh toan, anh tuan, tinh toan
tang cua » hang cua, tang luan, thong cua
mang cua » manh cua, dung cua, ban cua
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - hanh ((tang cua) OR (mang cua)) bang phuong manh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - hanh ((tang cua) OR (mang cua)) bang phuong manh toan ban*".