Perhaps you should try some spelling variations:
toc sach » doc sach, thuoc sach, nuoc sach
thanh vi » hanh vi, thanh va, thanh ve
hoc sach » hoc sinh, hoc cac, hoc anh
va thanh » gia thanh, ban thanh, va tinh
hieu van » hieu va, thien van, lieu va
van cam » van nam, van lam, van cau
luu tre » luu tru, cuu tre, luy tre
ly nang » ky nang, ly hang, ly vang
xuc va » duc va, tuc va, luc va
vi luu » vi lua
x hoi » o hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) OR (hoc sach)) ly nang ((x hoi) or (xa hoi)). hieu van cam xuc va thanh vi luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) ly nang ((x hoi) OR (xa hoi)). hieu van cam xuc va thanh vi luu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) OR (hoc sach)) ly nang ((x hoi) or (xa hoi)). hieu van cam xuc va thanh vi luu tre*".