Perhaps you should try some spelling variations:
doan thien » hoan thien, doan thi, toan thiet
qua cham » qua hai, qua cac, va cham
cham xuc » cam xuc, chat xuc, cham soc
hanh voi » hanh vi, hanh noi, hanh moi
voi doan » voi doanh, voi dan, von doanh
sach ty » sach tu, sach thu, xach tay
cao hoi » cau hoi, co hoi, cao hoc
va hanh » van hanh, va thanh, va danh
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) or (sach y)) nang cao hoi. hieu qua cham xuc va hanh voi doan thien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach y)) nang cao hoi. hieu qua cham xuc va hanh voi doan thien.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sach y)) nang cao hoi. hieu qua cham xuc va hanh voi doan thien*.