Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
vang thanh » van thanh, dang thanh, tang thanh
dung cong » dung trong
cong vang » cong lang, cong quang, cong ngang
thanh chu » thanh chau, thanh cha, thanh thu
trung ap » trung cap, trung lap, trung tam
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: theo ((chieu sach) or (chieu sang)) - thanh trung ap dung cong vang thanh chu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu sang)) - thanh trung ap dung cong vang thanh chu.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu sang)) - thanh trung ap dung cong vang thanh chu*.