Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
hanh trung » thanh trung, hanh trang, manh trung
tuan trong » thuan trong, quan trong, tran trong
hoc chieu » hoc thieu, ho chieu, hoc dieu
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
chan ban » can ban, chat ban, chan nan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chieu) OR (hoc hien)) sach - hanh trung tuan trong ((cong dan) or (cong tan)) chan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) sach - hanh trung tuan trong ((cong dan) OR (cong tan)) chan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc hien)) sach - hanh trung tuan trong ((cong dan) or (cong tan)) chan ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (hoc hien)) sach - hanh trung tuan trong ((cong dan) or (cong tan)) chan ban*.