Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh
hanh trung » thanh trung, hanh trang, manh trung
hieu manh » hieu nganh, dieu hanh, hien hanh
trung ha » trung hoc, trung tam, trung cap
ha dung » hai dung, kha dung, nha dung
cac van » cac dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (((chieu xanh) or (chieu sach)))) - hanh trung ha dung trong cac van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (((chieu xanh) OR (chieu sach)))) - hanh trung ha dung trong cac van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (((chieu xanh) or (chieu sach)))) - hanh trung ha dung trong cac van ban*.