Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
thanh phan » thanh pho, thanh san, thanh toan
dung cong » dung trong
phan dat » phan dai, phan day, nhan dat
dat dung » dan dung, vat dung, da dung
cong san » cong tac
phan dau » phan tu, hang dau

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 phan dat dung cong san ((phan dau) OR (phan lap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu khang - thanh phan dat dung cong san ((phan dau) OR (phan lap))*".