Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
tang nong » hang nong, tang dong, tang mong
ho chieu » theo chieu, hoc thieu, doi chieu
trung ha » trung hoc, trung tam, trung cap
nong san » cong san, dong san, nong dan
than cap » khan cap, thanh lap, thanh cac
toan cao » toan ban, toan tap
ha tang » phap tang, cao tang, kho tang

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 - thanh trung ha tang nong san ((than cap) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh trung ha tang nong san ((than cap) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh trung ha tang nong san ((than cap) or (toan cao))*.