Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
doi chieu » doc hieu, doi chi, ho chieu
chinh van » chinh va, chinh ban, chinh can
dung cong » dung trong
khoan cam » khoa cam, khoan va, phan cam
van dung » van dong, xay dung, tin dung
cong dan » cong san, cong tan, huong dan
khan cap » khan ap, than cap, phan cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (theo chieu)) tinh - hanh chinh van dung cong dan ((khan cap) OR (khoan cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (theo chieu)) tinh - hanh chinh van dung cong dan ((khan cap) OR (khoan cam)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (theo chieu)) tinh - hanh chinh van dung cong dan ((khan cap) OR (khoan cam))".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (theo chieu)) tinh - hanh chinh van dung cong dan ((khan cap) OR (khoan cam))*.