Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cham xuc » cam xuc, chat xuc, cham soc
va thanh » gia thanh, va tinh, le thanh
va cham » va chat, va tham
sach ky » sac ky, sach ty, sach kem
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
so viet » hoc viet
vi so » vi soi, vi mo, va so

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) or (sach y)) nang xa hoi. hieu va cham xuc ((va thanh) OR (ban thanh)) vi so viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach y)) nang xa hoi. hieu va cham xuc ((va thanh) OR (ban thanh)) vi so viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) or (sach y)) nang xa hoi. hieu va cham xuc ((va thanh) OR (ban thanh)) vi so viet".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sach y)) nang xa hoi. hieu va cham xuc ((va thanh) OR (ban thanh)) vi so viet*.