Perhaps you should try some spelling variations:
thieu lang » hieu lang, thieu khang, thieu quang
hanh trinh » canh tranh, hanh chinh
cong thanh » dong thanh, cong trinh, cong tan
thanh luan » tranh luan, thanh xuan, thanh tuan
luat cong » thuat cong, luat chung, cua cong
luat ban » luat bao, luat dan, luat bat

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu lang - hanh trinh ((luat ban) or (luat cong)) cong thanh luan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu lang - hanh trinh ((luat ban) OR (luat cong)) cong thanh luan van.
• Adding a wildcard symbol may retrieve word variants: toc thieu lang - hanh trinh ((luat ban) or (luat cong)) cong thanh luan van*.