Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hoc chieu » hoc thieu, ho chieu, hoc hien
truong va » truong dai, truong cao, truong dao
thanh cac » hanh cac, thanh bac, thanh ca
trung va » trang va, trung ha, trung tam
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh

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

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