Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh cua » doanh luan
cua thong » cua thuong, cua khong, cua tong
theo chu » theo chieu, cho chu, chao chu
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than ban » thanh ban, toan ban, than man

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) OR (theo chu)) xanh - hanh doanh cua thong cong tan than ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hien) OR (theo chu)) xanh - hanh doanh cua thong cong tan than ban*".