Perhaps you should try some spelling variations:
hien bach » vien bach, thien hach, hien hanh
hieu hien » bieu hien, dieu hien, chieu chien
cua viet » ca viet, hoa viet, cua vat
thanh vi » hanh vi, thanh va, thanh ve
bach qua » cac qua, bach hue, bach ha
nang xa » nang x, lang xa, nang ma
hanh va » hang va, hanh vi
cuu tre » cua tre, cau tren, cau treo
so sach » so sanh, bo sach, co sach
qua va » quan va, qua van, vua va
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y nang xa hoi. hieu hien bach qua va ((thanh vi) or (hanh va)) ((cuu tre) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang xa hoi. hieu hien bach qua va ((thanh vi) OR (hanh va)) ((cuu tre) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: so sach y nang xa hoi. hieu hien bach qua va ((thanh vi) or (hanh va)) ((cuu tre) or (cua viet))*.