Perhaps you should try some spelling variations:
thieu nien » thien nhien
hieu vien » hieu hien, hieu viec, hieu tieng
van doanh » toan doanh, van dong, van thanh
doanh vai » doanh tai, doanh va, doanh van
bach hoa » bach khoa, bach ha, cach hoan
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hoa van » hoa dan, hoang van, hoa phan
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo

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 ky nang xa hoi. ((hieu vien) or (thieu nien)) bach hoa van doanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. ((hieu vien) OR (thieu nien)) bach hoa van doanh vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. ((hieu vien) or (thieu nien)) bach hoa van doanh vai cuu tre*.