Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
dang cong » dung cong
gian dan » gian lang
van dang » van dong, van dung, van nang
cong van » cong vang, cong san, song van
phan lap » phan dau
dan van » dang van, doan van, dao van

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 sang - gian dan van dang cong van ((phan tu) or (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sang - gian dan van dang cong van ((phan tu) OR (phan lap))*.