Perhaps you should try some spelling variations:
hanh dang » hanh dong, anh dang, hanh dung
dung cong » dung trong
cong khan » cong khanh, cong nhan, cong phan
khan phan » than phan, khan than, phan phan
doc hieu » hoc thieu, hoc hien
dang van » hoang van, hang va
van dung » van dong, xay dung, tin dung
phan lap » phan dau

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) OR (toc thieu)) sang - hanh dang van dung cong khan phan lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (toc thieu)) sang - hanh dang van dung cong khan phan lap".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (toc thieu)) sang - hanh dang van dung cong khan phan lap*.