Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
van phan » van phong, van thanh, luan phan
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va phan » va phat, va phap, hoa phan
van han » van hanh, van nhan, van hoan
va cam » va cham, va cac, va cao
tai va » thai va, mai va, tri va
thiet » thieu

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 nang xa hoi. lieu va cam xuc ((((va phan) OR (van phan))) or (van han)) tai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang xa hoi. lieu va cam xuc ((((va phan) OR (van phan))) OR (van han)) tai va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang xa hoi. lieu va cam xuc ((((va phan) OR (van phan))) or (van han)) tai va thiet".
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang xa hoi. lieu va cam xuc ((((va phan) OR (van phan))) or (van han)) tai va thiet*.