Perhaps you should try some spelling variations:
cua truong » cua trung, xuan truong, cac truong
chieu sang » chieu sach, chieu xanh, hieu lang
ho chieu » theo chieu, hoc thieu, doi chieu
tac dung » sach dung, xay dung, van dung
cong van » cong vang, song van, cong tan
cong san » cong tac
tuan tap » toan tap, tuan tai, tuyen tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - ((tac dung) OR (tin dung)) cua truong ((cong van) or (cong san)) tuan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((tac dung) OR (tin dung)) cua truong ((cong van) OR (cong san)) tuan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - ((tac dung) OR (tin dung)) cua truong ((cong van) or (cong san)) tuan tap".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((tac dung) OR (tin dung)) cua truong ((cong van) or (cong san)) tuan tap*.