Perhaps you should try some spelling variations:
sach lo » sach dao, sach doi, sach hoi
lang xa » lang ha, dang xay, lang van
thi van » thi lan, thi hanh, thi nang
xuc van » luc van, xuc ban, thuc van
duc van » duc va, duc tan, duc manh
cua tre » cua te, cuu tre, cua triet
sach o » sac o, sach y, mach o
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach o) OR (sach lo)) lang xa hoi. thi van nam ((xuc van) or (duc van)) hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach o) OR (sach lo)) lang xa hoi. thi van nam ((xuc van) OR (duc van)) hanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach o) OR (sach lo)) lang xa hoi. thi van nam ((xuc van) or (duc van)) hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: thu ((sach o) OR (sach lo)) lang xa hoi. thi van nam ((xuc van) or (duc van)) hanh vi cua tre*.