Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
cau treo » cau theo, cau triet, cau trieu
cham xuc » cam xuc, chat xuc, cham soc
mai khoi » mai khoa, tai khoa, cac khoi
nang mai » nang ma, nang tai, lang mai
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
sach ty » sach y, sach tu, sach thu
han tai » hang tai, nhan tai, van tai
ty nang » ky nang, ty xang, ty hang
tu sach » thu sach, su sach, te sach
xuc va » duc va, tuc va, luc va
va han » va phan, van han, va hanh

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 nang mai khoi. hieu vu cham xuc va han tai ((cau treo) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang mai khoi. hieu vu cham xuc va han tai ((cau treo) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang mai khoi. hieu vu cham xuc va han tai ((cau treo) or (cau tren))*.