Perhaps you should try some spelling variations:
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
chat dung » chan dung, hat dung, chat luong
dung cong » dung trong
dan thanh » dang thanh, danh thanh, ban thanh
thanh sua » hanh sua, thanh qua, thanh xuan
doc hieu » hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (toc thieu)) nganh - hanh tinh chat dung cong dan thanh sua~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) nganh - hanh tinh chat dung cong dan thanh sua*.