Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
sach ky » sac ky, sach ty, sach kem
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, xuc ban
ve cam » ve cham, ve cac, va cam
vi cua » vai cua, di cua
cua te » cua tu
x hoi » xa hoi, o hoi, 5 hoi

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 ((x hoi) or (x ho)). hieu ve cam xuc van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) nang ((x hoi) OR (x ho)). hieu ve cam xuc van hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) nang ((x hoi) or (x ho)). hieu ve cam xuc van hanh vi cua te*.