Perhaps you should try some spelling variations:
cua tre » cua te, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
sach ky » sac ky, sach ty, sach kem
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
nang xa » nang x, lang xa, nang ma
cuu tre » cau tren, cau treo
cham o » cham soc
o va » do va, so va, co va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) or (sach y)) nang xa hoi. hieu ve cham o va hanh vi ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) nang xa hoi. hieu ve cham o va hanh vi ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) nang xa hoi. hieu ve cham o va hanh vi ((cua tre) or (cuu tre))*.