Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chua nang » chuc nang, chua xang, kha nang
trang van » trang va, trong van, tang van
chu xanh » chu manh, chieu xanh, chua xang
tran van » luan van
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh 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 nang)) - hanh ((trang van) OR (tran van)) nhung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chua nang)) - hanh ((trang van) OR (tran van)) nhung cong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) or (chua nang)) - hanh ((trang van) OR (tran van)) nhung cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chua nang)) - hanh ((trang van) OR (tran van)) nhung cong dan toan cau*.