Perhaps you should try some spelling variations:
tieu sang » chieu sang, tieu dung, tiem nang
hang cong » dang cong, hang nong, bang cong
mang cua » manh cua, dung cua, ban cua
ban quan » van quan
cong san » cong tac
san than » sang than, san thanh, ban than
than cao » toan cao, thai cao, than cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sang - hanh ((mang cua) or (ban quan)) hang cong san than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - hanh ((mang cua) OR (ban quan)) hang cong san than cao*.