Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
tinh cua » trinh cua, sinh cua, tinh chat
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap
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 ((((trinh quan) or (trinh han))) or (tinh cua)) nhung cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh ((((trinh quan) OR (trinh han))) OR (tinh cua)) nhung cong dan than cao.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh ((((trinh quan) or (trinh han))) or (tinh cua)) nhung cong dan than cao*.