Perhaps you should try some spelling variations:
truong quan » trong quan, thong quan, luong quan
chieu sang » chieu sach, chieu xanh, hieu lang
truong cua » truong ca, truong cao, huong cua
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban, toan 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 - hanh ((truong cua) OR (truong quan)) hang ((cong dan) or (cong tan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh ((truong cua) OR (truong quan)) hang ((cong dan) OR (cong tan)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - hanh ((truong cua) OR (truong quan)) hang ((cong dan) or (cong tan)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh ((truong cua) OR (truong quan)) hang ((cong dan) or (cong tan)) toan cao*.