Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thi nang » thi cong, ki nang, thi hanh
nang bac » bang bac, nang ban, dang bac
van hanh » ban hanh, van ban, van minh
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van anh » tuan anh, van minh
cuc tre » duc tre, cua tre, cuu tre

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

• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang xa hoi. thi nang bac duc ((((van hanh) OR (van thanh))) OR (van anh)) tai cuc tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky nang xa hoi. thi nang bac duc ((((van hanh) OR (van thanh))) or (van anh)) tai cuc tre~".
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. thi nang bac duc ((((van hanh) OR (van thanh))) or (van anh)) tai cuc tre*.