Perhaps you should try some spelling variations:
xa truong » cac truong
va huong » va thuong, va phuong, va tuong
hieu van » hieu va, thien van, lieu va
cua tre » cuu tre, cua triet, dua tren
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
cam tuc » cam xuc, cam tu, nam thuc
van cam » van nam, van lam, van cau
nang xa » nang x, lang xa, nang ma
cua te » cua tu

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 ky nang xa hoi. hieu van cam tuc ((va huong) or (xa truong)) hoi ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang xa hoi. hieu van cam tuc ((va huong) OR (xa truong)) hoi ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky nang xa hoi. hieu van cam tuc ((va huong) or (xa truong)) hoi ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. hieu van cam tuc ((va huong) or (xa truong)) hoi ((cua tre) OR (cua te))*.