Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
cong bang » cuong bang, dong bang, hong bang
trung ap » trung cap, trung lap, trung tam
hang tai » hang va, dung tai
ap dung » xay dung, van dung
hang ca » hang va, nang cao, hang dau

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 ap dung cong bang ((hang ca) or (hang tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh trung ap dung cong bang ((hang ca) OR (hang tai)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh trung ap dung cong bang ((hang ca) or (hang tai))*.