Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
so sach » so sanh, bo sach, co sach
xuc van » duc van, luc van, xuc ban
vu cham » va cham, vu kham, tu cham
ve chat » va chat, van chat
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang 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 y ((nang xa) or (lang xa)) hoi. hieu ((ve chat) or (vu cham)) xuc van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y ((nang xa) OR (lang xa)) hoi. hieu ((ve chat) OR (vu cham)) xuc van hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: so sach y ((nang xa) or (lang xa)) hoi. hieu ((ve chat) or (vu cham)) xuc van hanh vi cua te*.