Perhaps you should try some spelling variations:
thieu hach » thien hach, chieu sach, hieu cach
hanh trong » hanh trang, anh trong, hinh trong
trong quan » thong quan, tong quan, thong quang
hoc thieu » toc thieu, hoc hien
quan dang » quang dang, quan lang, quan dong
dang cong » dung cong
cong dan » cong san, cong tan, huong dan
phan dau » phan tu, hang dau
phan van » pham van, thanh van, luan 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 thieu hach - hanh trong quan dang cong dan ((phan dau) or (phan van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu hach - hanh trong quan dang cong dan ((phan dau) OR (phan van))*.