Perhaps you should try some spelling variations:
thanh trung » thanh tung
luong quang » luong quan, dung quang
chiet tach » chieu sach
cong quang » thong quang, duong quang, dang quang
trung dap » trung cap, trung dai, trung dam
dap trong » dat trong, dao trong, dai trong
ho chiet » ho chieu, ho thiet, hoc thiet
thong tu » phong tuc, thong tin, thong ke

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - thanh trung dap trong ((cong quang) OR (luong quang)) thong tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - thanh trung dap trong ((cong quang) OR (luong quang)) thong tu".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - thanh trung dap trong ((cong quang) OR (luong quang)) thong tu*.