Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
hanh tang » hanh trang, anh tang, hanh tung
hanh mang » nhanh mang, hanh trang, nhanh lang
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
gian nan » gian lan, gian van, giai nan
gian dan » gian 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 chinh sach - ((hanh tang) or (hanh mang)) cua nhung cong dan ((gian nan) OR (gian dan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - ((hanh tang) OR (hanh mang)) cua nhung cong dan ((gian nan) OR (gian dan)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chinh sach - ((hanh tang) or (hanh mang)) cua nhung cong dan ((gian nan) OR (gian dan))".
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - ((hanh tang) or (hanh mang)) cua nhung cong dan ((gian nan) OR (gian dan))*.