Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
chi sach » chinh sach, chieu sach, co sach
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap
doi chi » doi khi

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

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