Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
trinh vat » trinh van, trinh han, trinh tai
he chieu » ho chieu, he nhieu, theo chieu
cong san » cong tac
san ban » sang ban, van ban, can ban
ban can » ban dan, ban hang, ban hanh
luat » luan, xuat

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

• Performing a fuzzy search may retrieve terms with similar spellings: he chieu sang - canh ((((trinh vat) or (trinh luat))) or (sinh vat)) nhung cong san ban can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: he chieu sang - canh ((((trinh vat) OR (trinh luat))) OR (sinh vat)) nhung cong san ban can.
• Adding a wildcard symbol may retrieve word variants: he chieu sang - canh ((((trinh vat) or (trinh luat))) or (sinh vat)) nhung cong san ban can*.