Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
luan chung » luan chinh
chung cong » nhung cong, chong cong, phung cong
doi chieu » doc hieu, doi chi, ho chieu
hanh dung » thanh dung, anh dung, hanh dong
cong dan » cong san, cong tan, huong dan
than tap » toan tap, han tap, than cap
phan tap » phan lap, han tap, pha tap

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) or (doi chieu)) xanh - hanh dung luan chung cong dan ((than tap) or (phan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doi chieu)) xanh - hanh dung luan chung cong dan ((than tap) OR (phan tap)).
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doi chieu)) xanh - hanh dung luan chung cong dan ((than tap) or (phan tap))*.