Perhaps you should try some spelling variations:
ckieu tinh » chieu tinh, trieu tinh, lieu tinh
kieu tinh » lieu tinh, trieu tinh, diep tinh
manh hung » anh huong
hung chua » cung chua, hung chu, chung chuan
chua xang » chua nang, chuc nang, chu bang
cong van » cong vang, song van, cong tan
cong san » cong tac
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((kieu tinh) or (ckieu tinh)) - manh hung chua xang ((cong van) OR (cong san)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((kieu tinh) OR (ckieu tinh)) - manh hung chua xang ((cong van) OR (cong san)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((kieu tinh) or (ckieu tinh)) - manh hung chua xang ((cong van) OR (cong san)) toan ban".
• Adding a wildcard symbol may retrieve word variants: doc ((kieu tinh) or (ckieu tinh)) - manh hung chua xang ((cong van) OR (cong san)) toan ban*.