Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
trinh vat » trinh van, trinh luat, sinh vat
tong cong » trong cong, cong cong, dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
tranh va » tranh van, trang va, thanh va
trinh va » trinh van, trinh ve, trinh vi
phan cac » nhan cach, phan dau, phan lap
ty phan » ly phan, tu phan, tai phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - canh ((tranh va) or (((trinh va) or (trinh vat)))) tong cong ty phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - canh ((tranh va) OR (((trinh va) OR (trinh vat)))) tong cong ty phan cac.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - canh ((tranh va) or (((trinh va) or (trinh vat)))) tong cong ty phan cac*.