Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
cham xuc » cam xuc, chat xuc, cham soc
hanh tai » thanh tai, hang tai, han tai
lang tai » lang thai, hang tai, tang tai
tai khoa » da khoa, noi khoa
van hanh » van thanh, ban hanh, van anh
cuu tre » cua tre, cau treo
xuc van » duc van, luc van, vuc van
sach ky » sac ky, sach ty, sach kem
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham

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)) lang tai khoa. hieu ve cham xuc van hanh tai ((cuu tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) lang tai khoa. hieu ve cham xuc van hanh tai ((cuu tre) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) lang tai khoa. hieu ve cham xuc van hanh tai ((cuu tre) or (cau tren))*.