Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
qua dau » qua da, qua bau, qua dan
dau xua » dau cua, dao xuan, dau luan
xua van » xua va, qua van, cua van
van anh » van thanh, tuan anh, van minh
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
anh vi » hanh vi, anh va, anh ve
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thu hoach)) y nang xa hoi. hieu qua dau xua van anh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu hoach)) y nang xa hoi. hieu qua dau xua van anh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu hoach)) y nang xa hoi. hieu qua dau xua van anh vi cua tre*.