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
xuc van » duc van, luc van, vuc van
cuu tre » cua tre, cau tren, cau treo
sach ky » sac ky, sach ty, sach kem
hieu ve » hieu va
nang xa » nang x, lang xa, nang ma
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 ky) OR (sach y)) 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 ky) OR (sach y)) nang xa hoi. ((hieu ve) OR (hieu van)) cham xuc van hanh vi cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach y)) 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 ky) OR (sach y)) nang xa hoi. ((hieu ve) or (hieu van)) cham xuc van hanh vi cuu tre*.