Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, cham soc
so sach » so sanh, bo sach, co sach
xuc van » duc van, luc van, xuc ban
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, mang xa, ang xa
vi cua » vai cua, di cua
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) OR (nang ma))) or (lang xa)) hoi. hieu ve cham xuc van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky ((((nang xa) OR (nang ma))) OR (lang xa)) hoi. hieu ve cham xuc van hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky ((((nang xa) OR (nang ma))) or (lang xa)) hoi. hieu ve cham xuc van hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: so sach ky ((((nang xa) OR (nang ma))) or (lang xa)) hoi. hieu ve cham xuc van hanh vi cua te*.