Perhaps you should try some spelling variations:
luan phuong » lan phuong, quang phuong, doan phuong
chieu tinh » lieu tinh, chau tinh, kieu tinh
hanh dung » thanh dung, anh dung, hanh dong
duong dao » dong dao, truong dao, huong dan
luong dao » truong dao, luong giao, huong dan
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((chieu tinh) OR (trieu tinh)) - hanh dung luan phuong ((duong dao) or (luong dao)) khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((chieu tinh) OR (trieu tinh)) - hanh dung luan phuong ((duong dao) OR (luong dao)) khan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu tinh) OR (trieu tinh)) - hanh dung luan phuong ((duong dao) or (luong dao)) khan cap".
• Adding a wildcard symbol may retrieve word variants: doc ((chieu tinh) OR (trieu tinh)) - hanh dung luan phuong ((duong dao) or (luong dao)) khan cap*.