Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
cua nhung » va nhung
chong van » hong van, phong van, chong va
thong van » trong van, thong va, thong quan
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
quan ban » quang ban, qua ban, quan van

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: hoc ((thieu sang) OR (chinh sach)) - anh tang cua nhung ((chong van) OR (thong van)) quan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu sang) or (chinh sach)) - anh tang cua nhung ((chong van) OR (thong van)) quan ban~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sang) or (chinh sach)) - anh tang cua nhung ((chong van) OR (thong van)) quan ban*.