Perhaps you should try some spelling variations:
thuoc sach » hoc sach, thuat sach, thuoc sinh
nuoc sach » nguoi sach, hoc sach, cuoc cach
hieu thi » sieu thi, hieu chi, hiep thi
thi thao » thi thanh, thi thu, thi thuy
tay lang » tai lang, tay tang, tay quang
lang xa » lang ha, dang xay, lang van
thao su » thao lu, thap su, thao cua
cua tre » cua te, cuu tre, cua triet
su van » tu van, vu van
anh vi » hanh vi, anh va, anh vu
anh ve » hanh ve, anh va, anh viet

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sach) or (nuoc sach)) tay lang xa hoi. hieu thi thao su van ((anh vi) OR (anh ve)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (nuoc sach)) tay lang xa hoi. hieu thi thao su van ((anh vi) OR (anh ve)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuoc sach) or (nuoc sach)) tay lang xa hoi. hieu thi thao su van ((anh vi) OR (anh ve)) cua tre*".