Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chau tinh » cuu tinh, ha tinh, cua tinh
tranh van » tran van, trinh van, thanh van
van hang » van khang, van hoang, van thang
nong tan » nong dan, nong san, nong van
cong tan » cong tac, cong san, cong thanh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chau tinh) or (chieu sach)) - canh tranh van hang ((nong tan) or (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chau tinh) OR (chieu sach)) - canh tranh van hang ((nong tan) OR (cong tan)) toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chau tinh) or (chieu sach)) - canh tranh van hang ((nong tan) or (cong tan)) toan ban*.