Perhaps you should try some spelling variations:
thanh trung » thanh tung
chu nang » chuc nang, chua nang, cuu nang
trung va » truong va, trang va, trung ha
tuan cao » toan cao, juan cao, quang cao
cho chu » cho thue
con van » chon van, cong van, con ban
can van » cac van, can ban, tan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho chu nang - thanh trung va thuong ((con van) OR (can van)) tuan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho chu nang - thanh trung va thuong ((con van) OR (can van)) tuan cao".
• Adding a wildcard symbol may retrieve word variants: cho chu nang - thanh trung va thuong ((con van) OR (can van)) tuan cao*.