Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
su sach » so sach, vu sach
ky sang » ky dang, ky tang, duy sang
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
hai cua » thai cua, dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, ma hoa, me hoi
ve cam » ve cham, ve cac, va cam
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: su sach ((ky sang) or (ky nang)) ((ma hoi) or (xa hoi)). hieu ve cam xuc va hanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky sang) OR (ky nang)) ((ma hoi) OR (xa hoi)). hieu ve cam xuc va hanh hai cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ((ky sang) or (ky nang)) ((ma hoi) or (xa hoi)). hieu ve cam xuc va hanh hai cua tre*.