Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
hoi chieu » doi chieu, ho chieu, hai chieu
trong tan » trong quan, trong cac, trong ca
cap dung » cao dung, chan dung, cach dung
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
ap dung » xay dung, van dung

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

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