Perhaps you should try some spelling variations:
quang nhung » quang hung, quan nhung, quang phuong
chieu xanh » chieu sang, chieu tinh
chieu sach » chinh sach, chiet tach, chieu sang
thanh tinh » thanh binh, nhanh tinh, than kinh
nhung cong » dung cong, thong cong, hang cong
hieu manh » hieu nganh, dieu hanh, hien hanh
cong tac » cong ty
tac nhan » tao nhan, cac nhan, dac nhan
nhan ban » nhuan ban, nhat ban, nhan dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((chieu xanh) or (hieu manh))) or (chieu sach)) - thanh tinh quang nhung cong tac nhan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu xanh) OR (hieu manh))) OR (chieu sach)) - thanh tinh quang nhung cong tac nhan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu xanh) or (hieu manh))) or (chieu sach)) - thanh tinh quang nhung cong tac nhan ban*.