Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
phuong va » thuong va, phong va, huong va
ho chieu » theo chieu, hoc thieu, doi chieu
cap dung » ap dung, cao dung, chan dung
toan cau » toan cao, toan ban, toan tap
va toan » van toan, bai toan, tap toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - ((thanh trung) or (thanh tung)) cap dung phuong va toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((thanh trung) OR (thanh tung)) cap dung phuong va toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((thanh trung) or (thanh tung)) cap dung phuong va toan cau*.