Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
ve triet » va trien, su triet
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
va hanh » van hanh, va danh, ban hanh
ve cam » ve cham, ve cac, va cam
kem ve » ke ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky nang xa hoi. hieu ve cam xuc ((va hanh) OR (va thanh)) kem ve triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang xa hoi. hieu ve cam xuc ((va hanh) OR (va thanh)) kem ve triet".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang xa hoi. hieu ve cam xuc ((va hanh) OR (va thanh)) kem ve triet*.