Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
dan tai » van tai, dan thi, han tai
va chat » van chat, va phat, cao chat
ve chat » van chat
ve cham » va cham, vu cham, ve chim
nang xa » nang x, lang xa, nang ma
luc va » duc va, tuc va, loc va
va dan » ca dan, va dao, va dau
tai va » thai va, mai va, tri va
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: so sach ky nang xa hoi. hieu ((ve cham) or (((ve chat) or (va chat)))) luc va dan tai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang xa hoi. hieu ((ve cham) OR (((ve chat) OR (va chat)))) luc va dan tai va thiet.
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. hieu ((ve cham) or (((ve chat) or (va chat)))) luc va dan tai va thiet*.