Perhaps you should try some spelling variations:
phan thuong » hang thuong, phan xuong
thuong cong » thong cong, thuong con, thuong dong
cong phan » cong nhan, cong khan, chong phap
doi tinh » doi trinh, hoi tinh, don tinh
cong dan » cong san, cong tan, huong dan
toan cao » toan ban, toan tap
so doi » so do, so di, so dai

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

• Performing a fuzzy search may retrieve terms with similar spellings: so doi tinh - thanh cong phan thuong cong dan ((van ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so doi tinh - thanh cong phan thuong cong dan ((van ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: so doi tinh - thanh cong phan thuong cong dan ((van ban) or (toan cao))*.