Perhaps you should try some spelling variations:
thanh trong » thanh trung, tranh trong, hanh trong
chieu tach » chiet tach, chieu sach, chiu trach
trong quan » thong quan, tong quan, thong quang
quan thong » quang thong, quan trong, xuan thong
cong quang » luong quang, thong quang, duong quang
cong luong » cong thuong, nang luong, cong dong
ho chieu » theo chieu, hoc thieu, mot chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tach - thanh trong quan thong ((cong quang) or (cong luong)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tach - thanh trong quan thong ((cong quang) OR (cong luong)) phan tu.
• Adding a wildcard symbol may retrieve word variants: ho chieu tach - thanh trong quan thong ((cong quang) or (cong luong)) phan tu*.