Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh
chieu sang » chieu sach, hieu lang, nhieu tang
thanh tung » thanh cong
hieu manh » hieu nganh, dieu hanh, hien hanh
cua trong » cua truong, cua trung, qua trong
ban thanh » ban hanh, ban hang
thanh cac » hanh cac, thanh bac, thanh ca
tung cua » trung cua, tuong cua, dung cua
cong ban » cong bang, cong san, cong tan

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) or (chieu sang))) or (hieu manh)) - thanh tung cua trong cong ban thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu xanh) OR (chieu sang))) OR (hieu manh)) - thanh tung cua trong cong ban thanh cac.
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu xanh) or (chieu sang))) or (hieu manh)) - thanh tung cua trong cong ban thanh cac*.