Perhaps you should try some spelling variations:
su sach » so sach, vu sach
so sanh » do sanh
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
tai cuu » tai cuc, tai cua, thai cua
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (so sanh)) ky nang x hoi. hieu va cam xuc va hanh ((tai cuu) OR (tai buu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sanh)) ky nang x hoi. hieu va cam xuc va hanh ((tai cuu) OR (tai buu)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sanh)) ky nang x hoi. hieu va cam xuc va hanh ((tai cuu) OR (tai buu)) tre*".