Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
sang mai » sang ma, sang tai, lang mai
cua tre » cua te, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
sach tu » sach thu, cach tu, sach uu
mai hoi » mai khoi, dai hoi, lai hoi
sach ty » sach y, sach thu, xach tay
cuu tre » cau tren, cau treo
soc va » hoc va, loc va, doc 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 tu) or (sach ty)) sang mai hoi. hieu ve cham soc va hanh lai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tu) OR (sach ty)) sang mai hoi. hieu ve cham soc va hanh lai ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu ((sach tu) or (sach ty)) sang mai hoi. hieu ve cham soc va hanh lai ((cua tre) or (cuu tre))*.