Perhaps you should try some spelling variations:
sach tham » sach nha
hieu van » hieu va, thien van, lieu va
danh vai » danh sai, danh va, doanh van
vai cua » dai cua, hai cua, lai cua
van cam » van nam, van lam, van cau
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
xac va » tac va, ac va, bac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ty) or (sach tham)) lang xa hoi. hieu van cam ((xac va) or (duc va)) danh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach tham)) lang xa hoi. hieu van cam ((xac va) OR (duc va)) danh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) or (sach tham)) lang xa hoi. hieu van cam ((xac va) or (duc va)) danh vai cua tre*.