Perhaps you should try some spelling variations:
thanh hoa » thanh pho
hanh lam » thanh lap, hanh kem, hanh va
sach thu » sach thue, sach thieu, sach tham
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, xach tay
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
xuc va » duc va, tuc va, luc va
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ty) OR (sach thu)) nang xa hoi. hieu ve cam xuc va ((thanh hoa) or (hanh lam)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach thu)) nang xa hoi. hieu ve cam xuc va ((thanh hoa) OR (hanh lam)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) OR (sach thu)) nang xa hoi. hieu ve cam xuc va ((thanh hoa) or (hanh lam)) cua tre".
• Adding a wildcard symbol may retrieve word variants: su ((sach ty) OR (sach thu)) nang xa hoi. hieu ve cam xuc va ((thanh hoa) or (hanh lam)) cua tre*.