Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, canh tranh, minh trang
hanh trinh » canh tranh, hanh chinh
thanh phan » thanh pho, thanh san, thanh toan
trong ban » trong san, trong tan, trong quan
ban thanh » ban hanh, ban hang
cua dung » cua dang, cua dong, qua dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien hach) or (chieu sach)) - ((hanh trang) OR (hanh trinh)) cua dung trong ban thanh phan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien hach) OR (chieu sach)) - ((hanh trang) OR (hanh trinh)) cua dung trong ban thanh phan.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien hach) or (chieu sach)) - ((hanh trang) OR (hanh trinh)) cua dung trong ban thanh phan".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien hach) or (chieu sach)) - ((hanh trang) OR (hanh trinh)) cua dung trong ban thanh phan*.