Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
xuc van » duc van, luc van, xuc ban
ve cam » ve cham, va cam, ve cau
ve cai » va cai, ve tai, ve cau
ve cac » va cac, vien cac
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: su sach ky nang xa hoi. hieu ((((ve cam) OR (ve cai))) or (ve cac)) xuc van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu ((((ve cam) OR (ve cai))) OR (ve cac)) xuc van hanh vi cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu ((((ve cam) OR (ve cai))) or (ve cac)) xuc van hanh vi cua te*".