Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
bang cong » dang cong, bang song, hang cong
cong manh » cong danh, duong manh, cong thanh
hanh ban » thanh ban, hang ban, hanh san
cua bang » chua bang, cua ban, cua dang
toan cao » toan tap
toan ban » van ban
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - hanh ban cua bang cong manh ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh ban cua bang cong manh ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh ban cua bang cong manh ((toan cao) or (toan ban))*.