Perhaps you should try some spelling variations:
anh thai » anh thi, anh tai, nhanh thai
te sach » toc sach
anh hai » lanh hai, manh hai, anh bai
duc ban » duc tan, duc van, dua ban
cac duc » cac du, cao duc, cac dac
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
tay hoi » tay ho, tao hoi, tay thai
xay hoi » xa hoi, cay phoi, gay thoi
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac
ky anh » ky danh, ly anh, ty anh

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 anh ((xay hoi) OR (tay hoi)). hieu ve cac duc ban ((anh hai) or (anh thai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky anh ((xay hoi) OR (tay hoi)). hieu ve cac duc ban ((anh hai) OR (anh thai)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky anh ((xay hoi) OR (tay hoi)). hieu ve cac duc ban ((anh hai) or (anh thai)) cua tre*".