Perhaps you should try some spelling variations:
tieu xanh » chieu xanh, dieu hanh, tien anh
tieu danh » dieu danh, tiep danh, thien danh
hang cong » dang cong, hang nong, bang cong
trung va » truong va, trang va, trung tam
trung ha » trung hoc, trung tam, trung cap
cong van » cong vang, cong san, song van
van than » van thanh, van thang, van tuan
than cap » khan cap, thanh lap, thanh cac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (tieu danh)) - thanh ((trung va) OR (trung ha)) hang cong van than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) or (tieu danh)) - thanh ((trung va) OR (trung ha)) hang cong van than cap~".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) or (tieu danh)) - thanh ((trung va) OR (trung ha)) hang cong van than cap*.