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
cac tuc » cac toc, cac tu, cac tac
van cac » van hac, van cau, van bac
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach kem
xay hoi » tay hoi, cay phoi, gay thoi
sach ty » sach y, sach tu, sach thu
tuc va » thuc va, truc va, tuc xa
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: vu ((sach ky) or (sach ty)) dang ((xay hoi) OR (xa hoi)). thien van cac tuc va thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ky) OR (sach ty)) dang ((xay hoi) OR (xa hoi)). thien van cac tuc va thanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach ky) or (sach ty)) dang ((xay hoi) OR (xa hoi)). thien van cac tuc va thanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: vu ((sach ky) or (sach ty)) dang ((xay hoi) OR (xa hoi)). thien van cac tuc va thanh vi cua tre*.