Perhaps you should try some spelling variations:
thieu quang » hieu quang, thien quan, trien quang
cong thanh » dong thanh, cong trinh, truong thanh
hoc thieu » toc thieu, hoc hien
chinh ta » chinh tai, chinh va, chinh tri
cong tan » cong tac, cong ty, cong ha
cong san » cong tac
ta dung » tac dung, tan dung, tao dung
hoa cao » hoc cao, hoa co, hoa 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 - hanh chinh ta dung ((cong thanh) or (((cong tan) OR (cong san)))) hoa cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu quang - hanh chinh ta dung ((cong thanh) OR (((cong tan) OR (cong san)))) hoa cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu quang - hanh chinh ta dung ((cong thanh) or (((cong tan) OR (cong san)))) hoa cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu quang - hanh chinh ta dung ((cong thanh) or (((cong tan) OR (cong san)))) hoa cao*.