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

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