Perhaps you should try some spelling variations:
hoc thiet » hoc thieu, hoc thuyet, hoc hien
hanh tang » hanh trang, anh tang, hanh mang
dung cong » dung trong
hoc hiem » hoc hien, hoc thieu, hoc nhiet
tang cua » mang cua, hang cua, tang luan
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hiem) OR (hoc thiet)) ngan - hanh tang cua dung cong dan van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hiem) OR (hoc thiet)) ngan - hanh tang cua dung cong dan van ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc hiem) OR (hoc thiet)) ngan - hanh tang cua dung cong dan van ban*.