Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh cua » doanh cua, manh cua
bang song » nang song
cua bang » chua bang, cua ban, cua dang
song nam » dong nam, sung nam, uong nam
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (dieu hanh)) - canh tranh cua bang song nam ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (dieu hanh)) - canh tranh cua bang song nam ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (dieu hanh)) - canh tranh cua bang song nam ((toan cau) or (toan ban))*.