Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
hieu lang » chieu sang, hieu quang, nhieu tang
cong danh » cuong danh, cong thanh, cong khanh
hoc hanh » hoc nhanh, hoc thanh, hoc anh
hoc tang » hoc bang, hoc tan, hoc tieng
cong dan » cong san, cong tan, huong dan
toan ban » van ban
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - hanh trung ((hoc hanh) or (hoc tang)) ((cong danh) or (cong dan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh trung ((hoc hanh) OR (hoc tang)) ((cong danh) OR (cong dan)) toan ban.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh trung ((hoc hanh) or (hoc tang)) ((cong danh) or (cong dan)) toan ban*.