Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
theo chieu » ho chieu, theo chu, thi chieu
bang cong » dang cong, bang song, hang cong
chinh va » chinh ta, chinh tai, hanh va
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
va bang » va nang, va lang, va ban

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 (theo tieu)) xanh - hanh chinh va bang cong thanh ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) xanh - hanh chinh va bang cong thanh ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (theo tieu)) xanh - hanh chinh va bang cong thanh ((toan cau) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (theo tieu)) xanh - hanh chinh va bang cong thanh ((toan cau) or (toan ban))*.