Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
thanh loi » thanh hoa, thanh hai, thanh lap
vien cac » vien bach, vien dai, vien da
hanh lam » thanh lap, hanh kem, hanh va
cac xuc » cam xuc, cac nuoc, chat xuc
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va

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 ty ((nang xa) or (lang xa)) hoi. hieu vien cac xuc va ((thanh loi) or (hanh lam)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((nang xa) OR (lang xa)) hoi. hieu vien cac xuc va ((thanh loi) OR (hanh lam)) cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((nang xa) or (lang xa)) hoi. hieu vien cac xuc va ((thanh loi) or (hanh lam)) cua tre*.