Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
phan tang » phap tang, phan dang, phan cang
tang luan » dung luan
luan dong » luan cong, quan dong, luan nong
dong cong » duong cong, dung cong, dang cong
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 - phan tang luan dong cong dan ((toan ban) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - phan tang luan dong cong dan ((toan ban) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - phan tang luan dong cong dan ((toan ban) or (toan tap))*.