Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
van thanh » ban thanh, van tuan
van hanh » ban hanh, van anh, van ban
chau tre » chay tren, chau tho, cho tre
hieu ve » hieu va, hieu van
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, ma hoa, me hoi
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach y nang ((ma hoi) OR (xa hoi)). hieu ve cam xuc ((van hanh) or (van thanh)) lai chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y nang ((ma hoi) OR (xa hoi)). hieu ve cam xuc ((van hanh) OR (van thanh)) lai chau tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach y nang ((ma hoi) OR (xa hoi)). hieu ve cam xuc ((van hanh) or (van thanh)) lai chau tre".
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang ((ma hoi) OR (xa hoi)). hieu ve cam xuc ((van hanh) or (van thanh)) lai chau tre*.