Perhaps you should try some spelling variations:
trung cong » truong cong, trong cong, trung uong
cua trung » cua truong, xuan trung, cua nhung
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
hanh ban » thanh ban, hang ban, hanh san
cong dan » cong san, cong tan, huong dan
than tap » toan tap, han tap, than cap
phan tap » phan lap, han tap, pha tap
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu sach - hanh ban cua trung cong dan ((than tap) or (phan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - hanh ban cua trung cong dan ((than tap) OR (phan tap)).
• Adding a wildcard symbol may retrieve word variants: theo chu sach - hanh ban cua trung cong dan ((than tap) or (phan tap))*.