Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
trung dai » truong dai, truong dao, trung tam
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
tung ap » tang ap, tung dan, tung bay
dan van » dang van, doan van, dao van

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 xanh - thanh ((tung ap) or (trung dai)) dung cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - thanh ((tung ap) OR (trung dai)) dung cong dan van ban*.