Perhaps you should try some spelling variations:
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
cong thanh » dong thanh, cong trinh, cong tan
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
theo chu » theo chieu, cho chu, chao chu
tung cua » trung cua, tuong cua, dung cua
than cap » khan cap, thanh lap, thanh cac
khan ap » khan cap, han ap, khan dam

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo chu)) xanh - thanh tung cua nhung cong thanh ((than cap) OR (khan ap))~.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (theo chu)) xanh - thanh tung cua nhung cong thanh ((than cap) or (khan ap))*.