Perhaps you should try some spelling variations:
thanh nhan » thanh phan, thanh san, thanh toan
hoc sach » hoc sinh, hoc anh
nhan cuu » nhan cua, nhan cuoc, nghen cuu
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
hoc cac » hoc cao
cuu tre » cua tre, cau tren, cau treo
va cam » va cham, va cac, va cao
luc va » duc va, loc va
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sach) OR (hoc cac)) ky lang xa hoi. lieu va cam ((luc va) or (tuc va)) thanh nhan cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (hoc cac)) ky lang xa hoi. lieu va cam ((luc va) OR (tuc va)) thanh nhan cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc sach) OR (hoc cac)) ky lang xa hoi. lieu va cam ((luc va) or (tuc va)) thanh nhan cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) OR (hoc cac)) ky lang xa hoi. lieu va cam ((luc va) or (tuc va)) thanh nhan cuu tre*.