Perhaps you should try some spelling variations:
thien van » thi van
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
van cau » van dau, van hau, van chat
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
so sanh » do sanh
cua tre » cua te, cuu tre, cua triet
cau tu » dau tu, cau truc
vi cua » vai cua, di cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sanh)) va ((nang xa) OR (lang xa)) hoi. thien van cau tu va thanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sanh)) va ((nang xa) OR (lang xa)) hoi. thien van cau tu va thanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sanh)) va ((nang xa) OR (lang xa)) hoi. thien van cau tu va thanh vi cua tre*.