Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu tu » chieu tu, hieu tuc, hien tu
tu cham » toc cham, thi cham
soc van » oc van, sac van, soc dan
hoc van » hoc dan, hoc va, hoc vat
cua tre » cua te, cuu tre, cua triet
tu sac » tu cac, tu san, tu bac
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) OR (tu sach)) ky nang xa hoi. hieu tu cham ((soc van) or (hoc van)) hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu sach)) ky nang xa hoi. hieu tu cham ((soc van) OR (hoc van)) hanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu sach)) ky nang xa hoi. hieu tu cham ((soc van) or (hoc van)) hanh vi cua tre*".