Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
vien cac » vien bach, vien dai, vien da
hanh tai » thanh tai, hang tai, han tai
sach ly » sach y, sach lo, sach ty
ly hang » ly quang
hang xa » hoang xa, hang va, hang ca
xa hanh » xa thanh, xa khanh, va hanh
cuc tre » duc tre, cua tre, cuu tre
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: hoc sach ly hang xa hoi. hieu ((ve cac) or (vien cac)) tuc xa hanh tai cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ly hang xa hoi. hieu ((ve cac) OR (vien cac)) tuc xa hanh tai cuc tre.
• Adding a wildcard symbol may retrieve word variants: hoc sach ly hang xa hoi. hieu ((ve cac) or (vien cac)) tuc xa hanh tai cuc tre*.