Perhaps you should try some spelling variations:
vien cac » vien bach, vien dai, vien da
gian lan » gian lang, gian dan, giang van
danh lai » danh sai, gianh lai, dinh lam
sach ky » sac ky, sach y, sach ty
te sach » toc sach
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
ve cac » va cac

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 ky sang ma hoa. hieu ((ve cac) OR (vien cac)) xuc va ((danh lai) or (gian lan)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky sang ma hoa. hieu ((ve cac) OR (vien cac)) xuc va ((danh lai) OR (gian lan)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky sang ma hoa. hieu ((ve cac) OR (vien cac)) xuc va ((danh lai) or (gian lan)) cua tre*".