Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
hien hanh » dieu hanh
ban thanh » ban hanh, ban hang
thanh bac » nhanh bac, thanh bai, thanh san
trinh va » trinh van, trinh vat, trinh ve
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 (hien hanh)) - hanh trinh va nhung cong ban thanh bac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (hien hanh)) - hanh trinh va nhung cong ban thanh bac*.