Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thanh » dong thanh, cong trinh, cong tan
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
trung ap » trung cap, trung lap, trung tam
ap dung » xay dung, van dung
san ban » sang ban, van ban, san van
can ban » van ban, toan ban

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - thanh trung ap dung cong thanh ((san ban) OR (can ban))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh trung ap dung cong thanh ((san ban) OR (can ban))*.