Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
cua thuong » cua truong, cua phuong, ca thuong
hien tach » thien hach, chiet tach, vien bach
canh manh » lanh manh, canh tranh, cach mang
manh cua » doanh cua, ban cua
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien tach - canh manh cua thuong cong tan ((toan ban) OR (van ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien tach - canh manh cua thuong cong tan ((toan ban) OR (van ban))".
• Adding a wildcard symbol may retrieve word variants: hoc hien tach - canh manh cua thuong cong tan ((toan ban) OR (van ban))*.