Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cac xuc » cac nuoc, chat xuc, cac cuoc
dau thi » cau thi, dan thi, dao thi
thi cua » thai cua, thi cuc, tri cua
cua tre » cua te, cuu tre, cua triet
va dau » va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang xa hoi. lieu va ((cac xuc) OR (cam xuc)) va dau thi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. lieu va ((cac xuc) OR (cam xuc)) va dau thi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. lieu va ((cac xuc) OR (cam xuc)) va dau thi cua tre*.