Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
dung doanh » dung dan
hanh doanh » hang doanh, chinh doanh, doanh doanh
toc chieu » toc thieu, doc hieu, hoc thieu
dung dong » dung cong, vung dong, dung trong
anh quang » anh xquang, anh quan, nhanh quang
quang tri » quan tri
dong anh » hong anh, dong thanh, hoang anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc chieu tinh - ((dung doanh) or (hanh doanh)) ung dung dong anh quang tri~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu tinh - ((dung doanh) OR (hanh doanh)) ung dung dong anh quang tri.
• Adding a wildcard symbol may retrieve word variants: toc chieu tinh - ((dung doanh) or (hanh doanh)) ung dung dong anh quang tri*.