Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hanh doanh » hang doanh, chinh doanh, doanh doanh
khong cong » thong cong, khong cang, chong cong
hoc thieu » toc thieu, hoc hien
cua khong » hua khong, cua phuong, cua thuong
cong san » cong tac
than cao » toan cao, than cap, than sao
thai cao » tai cao, thoai cac, thuat cao
toan » tran

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 tinh - ((hanh doanh) or (toan doanh)) cua khong cong san ((than cao) OR (thai cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - ((hanh doanh) OR (toan doanh)) cua khong cong san ((than cao) OR (thai cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - ((hanh doanh) or (toan doanh)) cua khong cong san ((than cao) OR (thai cao))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - ((hanh doanh) or (toan doanh)) cua khong cong san ((than cao) OR (thai cao))*.