Perhaps you should try some spelling variations:
nhanh lang » nhanh quang, nhanh thang, nhan dang
phan dang » phan dau, phan cong, nhan dan
thac toc » cac toc, thac cac, thi toc
toc sach » hoc sach, doc sach, thuoc sach
van dung » van dong, xay dung, tin dung
dung ung » dung cong
ung thuc » ung thuoc, ung thu, dung thuoc
thuc dan » thuc hanh, hoc dan, thuc vat
dan chat » van chat, dan chan, ban chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: thac toc sach - ((nhanh lang) or (phan dang)) van dung ung thuc dan chat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thac toc sach - ((nhanh lang) OR (phan dang)) van dung ung thuc dan chat.
• Adding a wildcard symbol may retrieve word variants: thac toc sach - ((nhanh lang) or (phan dang)) van dung ung thuc dan chat*.