Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
thieu hanh » thien thanh, thien chanh, thieu khang
hoc thieu » toc thieu, hoc hien
nhan ung » phan ung, nham ung, nhan trung
cong dan » cong san, cong tan, huong dan
gian cau » gian chau, gian cam, gian cu
gian cac » gian dan, gian cua
han ung » phan ung, chan dung, han tong

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu hanh - doanh doanh ((nhan ung) OR (han ung)) cong dan ((gian cau) or (gian cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu hanh - doanh doanh ((nhan ung) OR (han ung)) cong dan ((gian cau) OR (gian cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu hanh - doanh doanh ((nhan ung) OR (han ung)) cong dan ((gian cau) or (gian cac))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu hanh - doanh doanh ((nhan ung) OR (han ung)) cong dan ((gian cau) or (gian cac))*.