Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
manh trung » manh tung, thanh trung, manh hung
trung cua » truong cua, trung tuan, trung cap
dang cong » dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
doc hieu » toc thieu, hoc thieu, hoc hien
cua dang » cua cong, cua ban
san ban » sang ban, van ban, can ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doc hieu)) xanh - manh trung cua dang cong thanh san ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doc hieu)) xanh - manh trung cua dang cong thanh san ban*.