Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
dung duong » dung dong, dong duong, dung dung
duong manh » duong van
doi chieu » doc hieu, doi chi, ho chieu
manh toan » thanh toan, anh tuan, tinh toan
tung dap » tung dan, trung dai, tuong dan
dap dung » ap dung, dan dung, dap ung
toan cau » toan cao, toan ban, toan tap

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 - thanh tung dap dung duong manh toan cau~.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh tung dap dung duong manh toan cau*.