Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
dang cong » dung cong
ho chieu » theo chieu, doi chieu, mot chieu
dinh cuu » dinh chi
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan ban » van ban

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: ((ho chieu) OR (hoc thieu)) xanh - than ((dinh cuu) OR (doanh cua)) dang cong van toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (hoc thieu)) xanh - than ((dinh cuu) or (doanh cua)) dang cong van toan ban~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (hoc thieu)) xanh - than ((dinh cuu) or (doanh cua)) dang cong van toan ban*.