Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
thi chieu » thi chien, thi hieu, thi hien
hanh dung » thanh dung, anh dung, hanh dong
dung cong » dung trong
cho dung » cho dong, cho ung, cao dung
cong san » cong tac
san than » sang than, san thanh, ban than
than tap » toan tap, han tap, phan tap

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

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