Perhaps you should try some spelling variations:
han thai » han tai, ban thai, van thai
su sach » so sach, vu sach
vu cham » va cham, vu kham, tu cham
van han » van hanh, van phan, van nhan
xuc van » duc van, luc van, vuc van
ve chat » va chat, van chat
sach ky » sac ky, sach y, sach ty
ve cham » va cham, ve chim, viet cham
nang xa » nang x, lang xa, nang ma
thai va » thai van
thiet » thieu

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 cham) or (ve chat))) or (vu cham)) xuc van han thai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu ((((ve cham) OR (ve chat))) OR (vu cham)) xuc van han thai va thiet.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu ((((ve cham) or (ve chat))) or (vu cham)) xuc van han thai va thiet*.