Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
nam thuoc » nam thuc, nam thu, nha thuoc
van hang » van khang, van hoang, van thang
thu van » thuc van, thuy van, tu van
ky dang » ky nang, ky danh
thi lan » thi hanh, thi nang
dang xa » dang xay, lang xa, dang ha
cua tre » cua te, cuu tre, cua triet
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 van ky dang xa hoi. ((thi lan) OR (thi lien)) nam thuoc ((van hang) or (van thanh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu van ky dang xa hoi. ((thi lan) OR (thi lien)) nam thuoc ((van hang) OR (van thanh)) di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu van ky dang xa hoi. ((thi lan) OR (thi lien)) nam thuoc ((van hang) or (van thanh)) di cua tre".
• Adding a wildcard symbol may retrieve word variants: thu van ky dang xa hoi. ((thi lan) OR (thi lien)) nam thuoc ((van hang) or (van thanh)) di cua tre*.