Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
dung cong » dung trong
cong tran » cong tan, cong tuan, cong toan
hoc hieu » hoc thieu, hoc hien, doc hieu
chinh va » chinh ta, chinh tai, hanh va
tran van » luan van
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu quang - hanh chinh va dung cong tran van ban~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu quang - hanh chinh va dung cong tran van ban*.