Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
trinh toan » tinh toan, thanh toan, trinh han
trung cap » truong cao, trung tam
doanh cua » doanh luan
cha tinh » chau tinh, cham tinh, chai tinh
toan cao » toan ban, toan tap
ho cha » ho chua, ho chi, ho ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho cha tinh - hanh ((trung cap) or (doanh cua)) nhung cong trinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho cha tinh - hanh ((trung cap) OR (doanh cua)) nhung cong trinh toan cao.
• Adding a wildcard symbol may retrieve word variants: ho cha tinh - hanh ((trung cap) or (doanh cua)) nhung cong trinh toan cao*.