Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
cong cong » cong dong, trong cong, dung cong
tran van » luan van
lang van » dang van, tang van, hoang van
cong dan » cong san, cong tan, huong dan
dan khan » dan khanh, dan chan, dan than
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: toc thieu khang - thanh ((tran van) or (lang van)) cong cong dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu khang - thanh ((tran van) OR (lang van)) cong cong dan khan cap*.