Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
hieu manh » hieu nganh, dieu hanh, hien hanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, ran cau

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 (hieu manh))) or (chieu tinh)) - hanh tranh cua nhung cong tan tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu xanh) OR (hieu manh))) OR (chieu tinh)) - hanh tranh cua nhung cong tan tran cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((chieu xanh) OR (hieu manh))) or (chieu tinh)) - hanh tranh cua nhung cong tan tran cau*".