Perhaps you should try some spelling variations:
ban thai » ban than, ban thi, ban tai
su sach » vu sach
vu cham » va cham, vu kham, tu cham
ve cham » va cham, ve chat, ve chim
nang xa » nang x, lang xa, nang ma
so sach » so sanh, bo sach, co sach
thai va » thai van
xuc va » duc va, tuc va, luc va
va ban » van ban, va bai, va bao
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) OR (so sach)) ky nang xa hoi. hieu ((ve cham) or (vu cham)) xuc va ban thai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky nang xa hoi. hieu ((ve cham) OR (vu cham)) xuc va ban thai va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ky nang xa hoi. hieu ((ve cham) or (vu cham)) xuc va ban thai va thiet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ky nang xa hoi. hieu ((ve cham) or (vu cham)) xuc va ban thai va thiet*.