Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
hanh tai » thanh tai, hang tai, han tai
cham xuc » cam xuc, chat xuc, cham soc
tai khoa » da khoa, noi khoa
lang tai » lang thai, hang tai, tang tai
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
sach ty » sach y, sach tu, sach thu
va hanh » van hanh, va thanh, va danh
ty lang » tay lang, ty xang, ty hang
cuu tre » cua tre, cau treo
tu sach » thu sach, su sach, te sach
xuc va » duc va, tuc va, luc 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 ty lang tai khoa. hieu ve cham xuc va hanh tai ((cuu tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty lang tai khoa. hieu ve cham xuc va hanh tai ((cuu tre) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty lang tai khoa. hieu ve cham xuc va hanh tai ((cuu tre) or (cau tren))*.