Perhaps you should try some spelling variations:
sach thue » sach thu, sach thieu, sach tham
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
cuu tre » cua tre, cau tren, cau treo
xuc van » duc van, luc van, xuc ban
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
sach ty » sach y, sach tu, sach thu
nang ma » tang ma, sang ma, nang cao
cua te » cua tu

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 ty) or (sach thue)) nang ma hoa. hieu ve cham xuc van hanh vi ((cuu tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach thue)) nang ma hoa. hieu ve cham xuc van hanh vi ((cuu tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sach thue)) nang ma hoa. hieu ve cham xuc van hanh vi ((cuu tre) or (cua te))*.