Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
van hanh » van thanh, ban hanh, van ban
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
van anh » van thanh, tuan anh, van minh
doi cua » dai cua, hoi cua
y nang » ly nang, v nang, may nang
ve cam » ve cham, ve cac, va cam
cua te » cua tu

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) or (ky nang)) xa hoi. hieu ve cam duc ((van hanh) OR (van anh)) doi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ((y nang) OR (ky nang)) xa hoi. hieu ve cam duc ((van hanh) OR (van anh)) doi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ((y nang) or (ky nang)) xa hoi. hieu ve cam duc ((van hanh) OR (van anh)) doi cua te".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ((y nang) or (ky nang)) xa hoi. hieu ve cam duc ((van hanh) OR (van anh)) doi cua te*.