Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
doanh cua » doanh luan
doanh va » doan va, doanh tai, hanh va
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - doanh ((doanh va) or (doanh cua)) nhung cong dan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - doanh ((doanh va) OR (doanh cua)) nhung cong dan than tap.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - doanh ((doanh va) or (doanh cua)) nhung cong dan than tap*.