Perhaps you should try some spelling variations:
hieu tinh » chieu tinh, lieu tinh, kieu tinh
manh hung » anh huong
hung chua » cung chua, hung chu, chung chuan
chua nang » chuc nang, chua xang, kha nang
doc hieu » toc thieu, hoc thieu, hoc hien
cong van » cong vang, song van, cong tan
cong san » cong tac
tuan ban » tuan bang, toan ban, luan 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 hieu tinh - manh hung chua nang ((cong van) OR (cong san)) tuan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu tinh - manh hung chua nang ((cong van) OR (cong san)) tuan ban".
• Adding a wildcard symbol may retrieve word variants: doc hieu tinh - manh hung chua nang ((cong van) OR (cong san)) tuan ban*.