Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
phap thuoc » phap thuc, pham thuoc, phap truoc
doi chieu » doc hieu, doi chi, ho chieu
cap thuoc » cay thuoc, cao thuoc, cap nuoc
tan thanh » tran thanh, tang thanh, toan thanh
tan than » tan tran, ban than, tam than

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh trung ((cap thuoc) OR (phap thuoc)) trong ((tan than) OR (tan thanh)) cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - thanh trung ((cap thuoc) OR (phap thuoc)) trong ((tan than) or (tan thanh)) cap~".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh trung ((cap thuoc) OR (phap thuoc)) trong ((tan than) or (tan thanh)) cap*.