Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
hanh huong » thanh huong, anh huong, manh huong
cua thuong » cua truong, cua phuong, ca thuong
tieu sach » chieu sach, dien sach, te sach
huong cua » dung 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: theo tieu sach - hanh huong cua thuong cong tan ((toan tap) or (((toan ban) or (van ban))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh huong cua thuong cong tan ((toan tap) OR (((toan ban) OR (van ban)))).
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh huong cua thuong cong tan ((toan tap) or (((toan ban) or (van ban))))*.