Perhaps you should try some spelling variations:
truong quan » trong quan, thong quan, luong quan
thieu sang » chieu sang, thieu khang, thieu quang
truong cua » truong cao, huong cua, thong cua
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
truong ca » truong cao, truong va, trong ca
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sang - hanh ((((truong cua) OR (truong quan))) or (truong ca)) nhung cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - hanh ((((truong cua) OR (truong quan))) OR (truong ca)) nhung cong dan than ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - hanh ((((truong cua) OR (truong quan))) or (truong ca)) nhung cong dan than ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - hanh ((((truong cua) OR (truong quan))) or (truong ca)) nhung cong dan than ban*.