Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
trinh toan » tinh toan, thanh toan, trinh han
theo chua » theo chu, ho chua, cheo cua
chua xang » chua nang, chuc nang, chu bang
tang cua » mang cua, hang cua, tang luan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chua xang - hanh ((tang cua) or (dung luan)) nhung cong trinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chua xang - hanh ((tang cua) OR (dung luan)) nhung cong trinh toan cau*.