Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
cua viet » ca viet, hoa viet, cua vat
hieu ve » hieu va
sach ty » sach y, sach tu, sach thu
va hanh » van hanh, va danh, ban hanh
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
vi cua » vai cua, di cua

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 ty nang xa hoi. ((hieu ve) or (hieu van)) cam xuc ((va hanh) OR (va thanh)) vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang xa hoi. ((hieu ve) OR (hieu van)) cam xuc ((va hanh) OR (va thanh)) vi cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty nang xa hoi. ((hieu ve) or (hieu van)) cam xuc ((va hanh) OR (va thanh)) vi cua viet".
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang xa hoi. ((hieu ve) or (hieu van)) cam xuc ((va hanh) OR (va thanh)) vi cua viet*.