Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
nang xa » nang x, lang xa, nang ma
ve cham » va cham, vu cham, ve chim
ve chat » va chat, van chat
sach ky » sac ky, sach y, sach ty
va danh » va dinh, va hanh, dia danh
vai cau » va cau, van cau, vai cac
su sach » so sach, vu sach
va dan » ca dan, va dao, va dau

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)) xuc ((va danh) or (va dan)) vai cau tren~.
• 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)) xuc ((va danh) OR (va dan)) vai cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu ((ve cham) OR (ve chat)) xuc ((va danh) or (va dan)) vai cau tren".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu ((ve cham) OR (ve chat)) xuc ((va danh) or (va dan)) vai cau tren*.