Perhaps you should try some spelling variations:
thuoc trong » thuc trong, hoc trong, thuat trong
nhieu tang » hieu lang, nhiet nang
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
quang toan » quang tran, quang doan, quang hoan
quang tuan » quang thanh, quan luan, quang cua
cua thuoc » nha thuoc, cay thuoc, cua nuoc
tung cua » trung cua, tuong cua, dung cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((nhieu tang) or (chieu sang)) - thanh tung cua thuoc trong ((quang toan) OR (quang tuan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((nhieu tang) OR (chieu sang)) - thanh tung cua thuoc trong ((quang toan) OR (quang tuan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((nhieu tang) or (chieu sang)) - thanh tung cua thuoc trong ((quang toan) OR (quang tuan)) cao".
• Adding a wildcard symbol may retrieve word variants: ho ((nhieu tang) or (chieu sang)) - thanh tung cua thuoc trong ((quang toan) OR (quang tuan)) cao*.