Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, cham soc
tu sach » thu sach, su sach, te sach
xuc van » duc van, luc van, vuc van
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu va
nang xa » nang x, lang xa, nang ma
so sach » so sanh, bo sach, co sach
vi cuu » vi luu, vinh cuu

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 (so sach)) ky nang xa hoi. ((hieu ve) or (hieu van)) cham xuc van hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (so sach)) ky nang xa hoi. ((hieu ve) OR (hieu van)) cham xuc van hanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (so sach)) ky nang xa hoi. ((hieu ve) or (hieu van)) cham xuc van hanh vi cuu tre*.