Perhaps you should try some spelling variations:
thieu thanh » thien thanh, thi thanh, thu thanh
cong quang » luong quang, thong quang, duong quang
hoc thieu » toc thieu, hoc hien
chinh han » chinh phan, chin han, chinh ban
hang khoa » dung khoa
han dung » chan dung, han duong, hanh dung
cong san » cong tac

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 thanh - hanh chinh han dung ((cong san) or (cong quang)) hang khoa~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu thanh - hanh chinh han dung ((cong san) OR (cong quang)) hang khoa.
• Adding a wildcard symbol may retrieve word variants: hoc thieu thanh - hanh chinh han dung ((cong san) or (cong quang)) hang khoa*.