Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
chat huu » pham huu
hanh doi » thanh doi, hanh noi, hang doi
van hanh » van thanh, ban hanh, van anh
doi cua » dai cua, hoi cua, dong cua
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet

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 ((nang x) or (lang xa)) hoi. hieu ve ((cham xuc) or (chat huu)) van hanh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang x) OR (lang xa)) hoi. hieu ve ((cham xuc) OR (chat huu)) van hanh doi cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ky ((nang x) or (lang xa)) hoi. hieu ve ((cham xuc) or (chat huu)) van hanh doi cua tre*.