Perhaps you should try some spelling variations:
nha thuoc » nha nuoc, nhan thuc, nha hoc
van thanh » ban thanh, van tuan
nam thuoc » nam thuc, nam thu, cay thuoc
van hang » van khang, van hoang, van thang
thu dan » thuc dan, thu dang, thu ban
cua tre » cua te, cuu tre, cua triet
thi van » thi lan, thi hanh, thi nang
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
dan ky » van ky
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu dan ky lang xa hoi. thi van ((nam thuoc) OR (nha thuoc)) ((van hang) or (van thanh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu dan ky lang xa hoi. thi van ((nam thuoc) OR (nha thuoc)) ((van hang) OR (van thanh)) di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu dan ky lang xa hoi. thi van ((nam thuoc) OR (nha thuoc)) ((van hang) or (van thanh)) di cua tre".
• Adding a wildcard symbol may retrieve word variants: thu dan ky lang xa hoi. thi van ((nam thuoc) OR (nha thuoc)) ((van hang) or (van thanh)) di cua tre*.