Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hanh thong » anh thong, hanh trong, hang thong
hoc thieu » toc thieu, hoc hien
thong va » thong cua, truong va, thong qua
cong dan » huong dan, cong dong, cong tac
cong san » cong tac
cong tan » cong tac, cong thanh, cong ty
toan tap » toan ban
va dang » van dang, va nang, va lang

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