Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
dung cong » dung trong
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap
nang su » dang su, nang tu, nang suat
nang du » nang tu, nang luc, nang doc

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - hanh ((nang su) or (nang du)) dung cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - hanh ((nang su) OR (nang du)) dung cong san toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - hanh ((nang su) or (nang du)) dung cong san toan cau*.