Perhaps you should try some spelling variations:
truong chung » truong trung
thieu sang » chieu sang, thieu khang, thieu quang
trinh chat » tinh chat, trinh luat, trinh phan
trinh han » trinh quan
chung lap » chung luan, chung ta, chung nam
lap doanh » luat doanh, nhap doanh, tap doan
doanh bat » danh bat, doanh tai, doanh va

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 sang - hanh ((trinh chat) or (trinh han)) truong chung lap doanh bat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sang - hanh ((trinh chat) OR (trinh han)) truong chung lap doanh bat.
• Adding a wildcard symbol may retrieve word variants: toc thieu sang - hanh ((trinh chat) or (trinh han)) truong chung lap doanh bat*.