Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
doc hieu » hoc thieu, hoc hien
doanh ca » doanh cua, doanh cao, doanh va
phi cong » thi cong, phan cong, pham cong
cong dan » cong san, cong tan, huong dan
dan tho » dan thi, can tho, dai tho
ca phi » cua phi, ca chi, ca phe

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) OR (toc thieu)) lang - hanh doanh ca phi cong dan tho ca~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (toc thieu)) lang - hanh doanh ca phi cong dan tho ca*".