Perhaps you should try some spelling variations:
cham sac » cham soc, pham sach, cap sac
su sach » so sach, vu sach
cu tren » tu tren, dua tren
van anh » van thanh, tuan anh, van minh
sac van » cac van, san van, sat van
sach ky » sac ky, sach y, sach ty
va cham » va chat, va tham
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, cua triet
anh vi » hanh vi, anh va, anh ve

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) or (nang ma)) hoi. lieu va cham sac van anh vi ((cu tren) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang xa) OR (nang ma)) hoi. lieu va cham sac van anh vi ((cu tren) OR (cua tre)).
• Adding a wildcard symbol may retrieve word variants: su sach ky ((nang xa) or (nang ma)) hoi. lieu va cham sac van anh vi ((cu tren) or (cua tre))*.