Perhaps you should try some spelling variations:
thiet hach » thien hach, thuyet hach, thiet hai
hanh trong » hanh trang, anh trong, hinh trong
trong quan » thong quan, tong quan, thong quang
hoc thiet » hoc thieu, hoc thuyet, hoc hien
quan dang » quang dang, quan lang, quan dong
dang cong » dung cong
nhan cach » phan cac
cong dan » cong san, cong tan, huong dan
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 thiet hach - hanh trong quan dang cong dan ((phan van) or (nhan cach))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet hach - hanh trong quan dang cong dan ((phan van) OR (nhan cach))*.