Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
cong tai » cong thai, cong tac, dong tai
tai phan » tai thanh, tai phong, tai ngan
tang ca » tang cua, hang ca, tang ha
tang ma » mang may, tang van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) or (chieu sach)) - thanh ((tang ca) OR (tang ma)) thuong cong tai phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - thanh ((tang ca) OR (tang ma)) thuong cong tai phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sach)) - thanh ((tang ca) OR (tang ma)) thuong cong tai phan tu".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sach)) - thanh ((tang ca) OR (tang ma)) thuong cong tai phan tu*.