Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
cua nhung » va nhung
thanh tap » thanh lap, thanh tay, thanh tam
thanh tai » thanh hai, thanh toan, doanh tai
ho chieu » theo chieu, hoc thieu, doi chieu
anh tang » anh bang, anh nang, anh sang
anh dang » anh dong, anh dung, anh bang
cong van » cong vang, cong san, song van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - ((anh tang) OR (anh dang)) cua nhung cong van ((thanh tap) or (thanh tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((anh tang) OR (anh dang)) cua nhung cong van ((thanh tap) OR (thanh tai)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((anh tang) OR (anh dang)) cua nhung cong van ((thanh tap) or (thanh tai))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((anh tang) OR (anh dang)) cua nhung cong van ((thanh tap) or (thanh tai))*.