Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
trung chan » trung phan, trong chan, trung can
doi chieu » doc hieu, doi chi, ho chieu
chan dung » van dung, dan dung
dung cong » dung trong
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan tap, toan tai
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 - thanh trung chan dung cong tan ((toan cau) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - thanh trung chan dung cong tan ((toan cau) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh trung chan dung cong tan ((toan cau) OR (toan ban))*.