Perhaps you should try some spelling variations:
thieu quang » hieu quang, thien quan, trien quang
hoc thieu » toc thieu, hoc hien
anh dang » anh dong, anh dung, anh bang
dang cua » dung cua, dong cua, mang cua
cua dung » cua dang, cua dong, qua dung
dong san » dong bang, dong von, dong ha
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu quang - anh dang cua dung ((dong san) or (cong san)) than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu quang - anh dang cua dung ((dong san) OR (cong san)) than cap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu quang - anh dang cua dung ((dong san) or (cong san)) than cap*.