Perhaps you should try some spelling variations:
thanh than » thanh thanh, thanh thang, thanh toan
than cua » nhan cua, thai cua, ban cua
va thanh » gia thanh, ban thanh, va tinh
sach thu » sach thue, sach thieu, sach tham
hieu van » hieu va, thien van, lieu va
van bac » van ban, van bao, van hac
nang xa » nang x, lang xa, nang ma
sach ky » sac ky, sach y, sach kem
sach ty » sach y, sach tu, xach tay
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: su ((sach ky) or (((sach ty) OR (sach thu)))) nang xa hoi. hieu van bac xuc va thanh than cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (((sach ty) OR (sach thu)))) nang xa hoi. hieu van bac xuc va thanh than cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) or (((sach ty) OR (sach thu)))) nang xa hoi. hieu van bac xuc va thanh than cua tre".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (((sach ty) OR (sach thu)))) nang xa hoi. hieu van bac xuc va thanh than cua tre*.