Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
chinh danh » chinh doanh, chinh dang, chinh sach
dung cong » dung trong
cong than » cong thanh, cong thang, cong tan
danh qua » hanh qua, doanh quan, manh quan
qua dung » quang dung, su dung, qua song
phan van » pham van, thanh van, luan 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 - chinh danh qua dung cong than ((phan tu) or (phan van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sang - chinh danh qua dung cong than ((phan tu) OR (phan van))*.