Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
chat xuc » chat huu, cam xuc, chao xu
van manh » van minh, van anh, van hanh
van xanh » van anh, van hanh, van canh
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
ky dang » ky nang, ky danh
ky sang » ky nang, ky tang, duy sang
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((ky sang) OR (ky dang)) ma hoa. hieu ve chat xuc ((van xanh) or (van manh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ky sang) OR (ky dang)) ma hoa. hieu ve chat xuc ((van xanh) OR (van manh)) di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((ky sang) OR (ky dang)) ma hoa. hieu ve chat xuc ((van xanh) or (van manh)) di cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ((ky sang) OR (ky dang)) ma hoa. hieu ve chat xuc ((van xanh) or (van manh)) di cua tre*.