Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chua nang » chuc nang, chua xang, kha nang
trang van » tran van, trang va, tang van
trong van » trong cac
chu manh » ho manh, chu han, chu van
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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 manh) or (chua nang)) - hanh ((trang van) or (trong van)) thong cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu manh) OR (chua nang)) - hanh ((trang van) OR (trong van)) thong cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chu manh) or (chua nang)) - hanh ((trang van) or (trong van)) thong cong dan toan cao*.