Perhaps you should try some spelling variations:
hoc chinh » hoan chinh, hoc sinh, hoc kinh
xanh hanh » danh thanh, ban hanh, van hanh
dung cong » dung trong
than phan » thanh phan, toan phan, thanh pham
cong tac » cong ty
hanh va » hang va, hanh vi
va dung » van dung, va duong, vat dung
than ma » than man, than va, khan ma

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 - xanh hanh va dung cong tac ((than phan) or (than ma))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - xanh hanh va dung cong tac ((than phan) OR (than ma))*.