Perhaps you should try some spelling variations:
dung cong » dung trong
van dung » van dong, xay dung, tin dung
hieu van » hieu va, thien van, lieu va
so sach » so sanh, co sach, hoc sach
xuc van » duc van, luc van, vuc van
cua tre » cua te, cua triet, dua tren
van cam » van nam, van lam, van cau
nang xa » nang x, lang xa, nang ma
bo sach » co sach, hoc sach
cuu 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: ((so sach) OR (bo sach)) ky nang xa hoi. hieu van cam xuc van dung cong ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (bo sach)) ky nang xa hoi. hieu van cam xuc van dung cong ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (bo sach)) ky nang xa hoi. hieu van cam xuc van dung cong ((cua tre) or (cuu tre))*".