Perhaps you should try some spelling variations:
khang cong » hang cong, thanh cong, dang cong
hieu lang » chieu sang, hieu quang, nhieu tang
hanh luan » khanh luan, hang luan, hanh luat
van khang » van khanh, van thanh, van quang
cong danh » cuong danh, cong dan, cong thanh
danh tuan » anh tuan, manh tuan, danh thanh
hoc hieu » hoc thieu, hoc hien, doc hieu
tuan tai » toan tai, quan tai, tan tai

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 lang - hanh luan van khang cong danh tuan tai~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu lang - hanh luan van khang cong danh tuan tai*.