Perhaps you should try some spelling variations:
thieu quang » hieu quang, thien quan, trien quang
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
thien van » thi van
hanh sinh » hanh tinh, hanh dinh, hinh sinh
cua nhung » va nhung
sinh cua » manh cua, dinh cuu, sinh va
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi ((chieu sang) or (((thieu quang) or (thien van)))) - hanh sinh cua nhung cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi ((chieu sang) OR (((thieu quang) OR (thien van)))) - hanh sinh cua nhung cong dan than cao.
• Adding a wildcard symbol may retrieve word variants: hoi ((chieu sang) or (((thieu quang) or (thien van)))) - hanh sinh cua nhung cong dan than cao*.