Perhaps you should try some spelling variations:
thanh nhan » thanh phan, thanh san, thanh toan
nhan cua » nhat cua, nhan luc, nhan su
hoc sac » hoc sach, hoc cac, hoc mac
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
cua tre » cua te, cuu tre, cua triet
sac ky » cac ky, sai ky
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 sac ky dang xa hoi. lieu va cam ((luc va) or (tuc va)) thanh nhan cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sac ky dang xa hoi. lieu va cam ((luc va) OR (tuc va)) thanh nhan cua tre.
• Adding a wildcard symbol may retrieve word variants: hoc sac ky dang xa hoi. lieu va cam ((luc va) or (tuc va)) thanh nhan cua tre*.