Perhaps you should try some spelling variations:
che chinh » te chinh
hanh sinh » hanh tinh, hanh dinh, hinh sinh
hang cong » dang cong, hang nong, bang cong
sinh cua » manh cua, dinh cuu, sinh va
cua hang » cua dang, cua nhung, cua cong
cong van » cong vang, cong san, song van
van van » tan van, san van, van vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((che chinh) or (quoc thinh)) sach - hanh sinh cua hang cong van van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((che chinh) OR (quoc thinh)) sach - hanh sinh cua hang cong van van ban.
• Adding a wildcard symbol may retrieve word variants: ((che chinh) or (quoc thinh)) sach - hanh sinh cua hang cong van van ban*.