Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cong hoa » dong hoa, dong hoc, hang hoa
van chua » va chua, van chia, van cua
cham xuc » chat xuc, cham soc, pham duc
so sach » so sanh, bo sach, co sach
van chu » van chi, van phu, van cau
sach ky » sac ky, sach y, sach ty
hieu tu » chieu tu, hieu tuc, hien tu
hoa hoi » khoa hoi, hoa hoc, hoa doi
ky cong » ke cong, ly cong, khu cong

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky cong hoa hoi. hieu tu ((cham xuc) OR (cam xuc)) ban thanh ((van chua) or (van chu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky cong hoa hoi. hieu tu ((cham xuc) OR (cam xuc)) ban thanh ((van chua) OR (van chu)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky cong hoa hoi. hieu tu ((cham xuc) OR (cam xuc)) ban thanh ((van chua) or (van chu)) tre".
• Adding a wildcard symbol may retrieve word variants: so sach ky cong hoa hoi. hieu tu ((cham xuc) OR (cam xuc)) ban thanh ((van chua) or (van chu)) tre*.