Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
thanh di » thanh doi, thanh de, thanh do
tu sach » thu sach, su sach, te sach
duc ban » duc tan, duc van, duc man
dua ban » dia ban, cua ban, qua ban
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
di cua » dai cua, doi cua, de cua

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: ((tu sach) OR (thuat lanh)) ky nang xa hoi. lieu va cam ((duc ban) OR (dua ban)) thanh di cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thuat lanh)) ky nang xa hoi. lieu va cam ((duc ban) OR (dua ban)) thanh di cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat lanh)) ky nang xa hoi. lieu va cam ((duc ban) OR (dua ban)) thanh di cua tre*.