Perhaps you should try some spelling variations:
chiet tach » chieu sach
tranh cai » tranh cac, tranh chap, tranh giai
trinh cai » trinh tai, trinh cau, trinh cac
ho chiet » ho chieu, ho thiet, hoc thiet
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan tap » toan 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 chiet tach - canh ((tranh cai) OR (trinh cai)) tuong ((cong dan) or (cong san)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - canh ((tranh cai) OR (trinh cai)) tuong ((cong dan) OR (cong san)) toan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - canh ((tranh cai) OR (trinh cai)) tuong ((cong dan) or (cong san)) toan tap*".