Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, nhung don
hoc chieu » hoc thieu, ho chieu, hoc hien
hang cong » dang cong, hang nong, bang cong
trung va » truong va, trang va, trung ha
than cap » khan cap, thanh lap, thanh cac
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: hoc chieu xanh - thanh trung va ((nhung cong) or (hang cong)) dan ((than cap) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - thanh trung va ((nhung cong) OR (hang cong)) dan ((than cap) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - thanh trung va ((nhung cong) or (hang cong)) dan ((than cap) or (toan cao))*.