Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trang » thanh trung, canh tranh, hanh trinh
chua xang » chua nang, chuc nang, chu bang
chu xanh » chu manh, chieu xanh, chuc danh
trang va » tran van, hang va
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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 ((chu xanh) or (chua xang)) - hanh trang va nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chua xang)) - hanh trang va nhung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chua xang)) - hanh trang va nhung cong tac toan cau*.