Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, nhieu tang
hanh trung » thanh trung, hanh trang, manh trung
nhung cong » dung cong, thong cong, hang cong
hieu lang » hieu quang, nhieu tang, hieu van
trung vap » trung cap, trung va, trung van
vap nhung » va nhung, ve nhung, voi nhung
cong dan » cong san, cong tan, huong dan
ca cau » cua cau, cac cau, can cau

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 sach) or (((hieu lang) OR (chieu sang)))) - hanh trung vap nhung cong dan ca cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (((hieu lang) OR (chieu sang)))) - hanh trung vap nhung cong dan ca cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) or (((hieu lang) OR (chieu sang)))) - hanh trung vap nhung cong dan ca cau*".