Perhaps you should try some spelling variations:
thanh trung » thanh tung
chua nang » chuc nang, chua xang, kha nang
chu manh » ho manh, chu han, chu van
trung va » truong va, trang va, trung ha
va thong » va thuong, va phuong, he thong
cong van » cong vang, song van, cong tan
cong san » cong tac
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 manh) or (chua nang)) - thanh trung va thong ((cong van) OR (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu manh) OR (chua nang)) - thanh trung va thong ((cong van) OR (cong san)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu manh) or (chua nang)) - thanh trung va thong ((cong van) OR (cong san)) toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chu manh) or (chua nang)) - thanh trung va thong ((cong van) OR (cong san)) toan cau*.