Perhaps you should try some spelling variations:
luong cong » dung cong, trong cong, cong cong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
dua luong » da luong, du luong, duc luong
ho chinh » cho chinh, hoa chinh, do chinh
anh nang » ganh nang, anh bang, anh dang
nang dua » nang du, nang suat, nang quan
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chinh) OR (hoc chinh)) sach - anh nang dua luong cong tac phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chinh) OR (hoc chinh)) sach - anh nang dua luong cong tac phan tu".
• Adding a wildcard symbol may retrieve word variants: ((ho chinh) OR (hoc chinh)) sach - anh nang dua luong cong tac phan tu*.