Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
nhan ban » nhuan ban, nhat ban, nhan dan
cong tan » cong tac, cong san, cong thanh
nhan tai » hang tai, van tai, toan tai
ban cua » ban quan
han tap » han tai, toan tap, nhan tao

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - nhan ban cua nhung cong tan ((han tap) OR (nhan tai))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sach)) - nhan ban cua nhung cong tan ((han tap) OR (nhan tai))~".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sach)) - nhan ban cua nhung cong tan ((han tap) OR (nhan tai))*.