Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hieu sach » hieu cach, dien sach, hieu cac
chinh qua » chinh cua, chinh sua, chinh quoc
qua thong » qua trong, quang thong, suat thong
thong van » trong van, thong va, thong quan
van hang » van khang, van hoang, van thang

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu sach) or (chieu sach)) - hanh chinh qua thong thong van hang va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu sach) OR (chieu sach)) - hanh chinh qua thong thong van hang va.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu sach) or (chieu sach)) - hanh chinh qua thong thong van hang va*.