Perhaps you should try some spelling variations:
hoc thien » hoc hien, hoc thieu, hoc thiet
dung cong » dung trong
chinh va » chinh ta, chinh tai, hanh va
cong dan » cong san, cong tan, huong dan
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap
va dung » van dung, va duong, vat dung

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

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