Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
trinh vet » trinh viet, trinh vat, trinh ven
tong cong » trong cong, cong cong, dung cong
tranh va » tranh van, trang va, trinh va
trinh ve » trinh he, trinh va, trinh vi
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan cac » nhan cach, phan dau, phan lap

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

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